1. In order to improve English, _____.
A. Jenny’s father bought her a lot of tapes
B. Jenny bought a lot of tapes for herself
C. a lot of tapes were bought by Jenny
D. a lot of Tapes were bought by Jenny’s father
2. Do let your mother know all the truth. She appears __ everything.
A. to tell B. to be told C. to be telling D. to have been told
3. In order to gain a bigger share in the international market, many state-run companies are striving ____ their products more competitive.
A. to make B. making
C. to have made D. having made
4. Quite a few people used to believe that disaster ___ if a mirror was broken.
A. was sure of striking B. was sure of having struck
C. was sure of struck D. was sure to strike
5. He let me repeat his instruction ____ sure that I understand what was ___ after he went away.
A. to make; to be done B. making; doing
C. to make; to do D. making; to do
6. There is a new problem involved in the popularity of private cars ___ road conditions need ____.
A. that; to be improved B. which; to be improved
C. where; improving D. when; improving
7. European football is played in 80 countries, _____ it the most popular sport in the world.
A. making B. makes C. made D. to make
8. The teacher asked us ___ so much noise.
A. don’t make B. not make
C. not making D. not to make
9. ---- How do you deal with the disagreement between the company and the customers?
---- The key ___ the problem is to met the demand ____ by the customers.
A. to solving; making B. to solving; made
C. to solve; making D. to solve; made
10. She will tell us why she feels so strongly that each of us has role ___ making the earth a better place to live.
A. to have played B. to play
C. to be played D. to be playing
11. There was a terrible noise ____ the sudden burst of light.
A. followed B. following
C. to be followed D. being followed
12. The first textbooks ___ for teaching English as a foreign language came out in the 16th century.
A. having written B. to be written
C. being written D. written
13. The next morning she found the man ___ in bed dead.
A. lying B. lie C. lay D. laying
14. What’s the language ___ in Germany .
A. speaking B. spoken C. be spoken D. to speak
15. She’s upstairs ____ letters.
A. writes B. is writing C. write D. writing
16. Most of the artists ___ to the party were from South Africa .
A. invited B. to invite C. being invited D. had been invited
17. The computer center, ___ last year, is very popular among the students in this school.
A. open B. opening C. having open D. opened
18. The speaker raised her voice but still couldn’t make herself ______.
A. hear B. being hearing C. to hear D. heard
19. The salesman scolded the give caught ____ and let her off.
A. to have stolen B. to be stealing C. to steal D. stealing
20. She set out soon after dark ____ home an hour later.
A. arriving B. to arrived C. having arrived D. and arrived
21. With trees, flowers and grass ____ everywhere, my native town had taken on a new look.
A. planting B. planted C. to plant D. to be planted
22. You will find the word “psychology” _____ under “P” in you dictionary.
A. have listed B list C. listed D. listing
23. In the past few years, we have had thousands of trees _____ around our school.
A. plant B. planted C. to plant D. being plant
24. Is this the recorder you want ____ ?
A. to have repaired B. to repair it
C. to have it repaired D. it repaired
25. She was glad to see her child well ____ care of.
A. take B. to be taken C. to know D. taking
26. The result of the entrance exams was not made _____ to the public until last Thursday.
A. knowing B. known C. to know D. to be known
27. He found them ____ at a table _____
A. sat; to play chess B. sitting; to play chess
C. seated; playing chess D. seat; play the chess
28. I can make you ____ what I say, but you can’t make yourself _____ to English.
A. understand; understand;
B. understand; understood
C. to understand; understand
D. understand; to be understood
29. The girl asked him not to leave the door ______.
A. to close B. closed C. to be closed D. closing
30. John have rushed our in a hurry, _____ the door _____.
A. leaving; unlocked B. leaving; unlocking
C. left; unlocked D. to leave; unlocking
31. ______ more attention, the tree could have grown better.
A. Given B. To give C. Giving D. Having given
32. The computer center, _____ last year, is very popular among the students in this school.
A. open B. opening C. having opened D. opened
33. Friendship is like money; easier made than _____.
A. kept B. to be kept C. keeping D. being kept
34. _____ in thought, he almost ran into the car in front of him.
A. Losing B. Having lost C. Lost D. To lose
35. _____ the general state of his health, it may take him a while to recover from the operation.
A. Given B. To give C. Giving D. Having given
36. ______ such heavy pollution already, it may now be too late to late to clean up the river.
A. Having suffered B. Suffering C. To suffer D. Suffered
37. The research is so designed that once ___ nothing can be done to change it.
A. begins B. having begun C. beginning D. begun
38. ______ in 1636, Harvard is one of the most famous universities in the United States .
A. Being founded B. It was founded C. Founded D. Founding
39. When ______, the museum will be open to the public next year.
A. completed B. completing
C. being completed D. to be completed
40. Prices of daily goods ____ through a computer can be lower than store prices.
A. are bought B. bought C. been bought D. buying
41. He asked ____ for the violin.
A. did I pay how much B. I paid how much
C. how much did I pay D. how much I paid
42. Someone is ringing the doorbell. Go and see _____.
A. who is he B. who he is C. who is it D. who it is
43. Can you make sure _____ the gold ring?
A. where Alice had put B. where had Alice put
C. where Alice has put D. where has Alice put
44. _____ she couldn’t understand was _____ fewer and fewer students showed interest in her lessons.
A. What; why B. That; what C. What; because D. Why; that
45. Little Tommy was reluctant to tell the schoolmaster _____ he had done the day before.
A. that B. how C. where D. what
46. _____ you don’t like him is none of my business.
A. What B. Who C. That D. Whether.
47. ______ the 20078 Olympic Games will be held in Beijing is not known yet.
A. That B If C. Whether D. Whenever
48. What the doctors really doubt is _____ my mother will recover from the serious disease soon.
A. when B. how C. whether D. why
49. _____ is no possibility ___ Bob can win the first prize in the match.
A. There; that B. It; that C. There; whether D. It; whether
50. These wild flowers are so special I would do __ I can to save them.
A. whatever B. that C. which D. whichever
51. Sarah hoped to become a friend of ___ shares her interests.
A. anyone B. whomever C. whoever D. no matter who
52. ____ we can’t get seems better than _____ we have.
A. What; what B. What; that C. That; that D. That; what
53. ______ we’ll go camping tomorrow depends on the weather.
A. If B. Whether C. That D. Where
54. It is generally considered unwise to give a child _____he or she wants.
A. however B. whatever C. whichever D. whenever
55. Dr. Black comes from either Oxford or Cambridge . I can’t remember ___.
A. where B. there C. which D. that
56. It was a matter of ____ would take the position.
A. who B. whoever C. whom D. whomever
57. ---- I drove to Zhuhai for the air show last week.
---- Is that ____ you had a few days off?
A. why B. when C. what D. where
58. Eat ___ cake you like and leave the others for ___ comes in late.
A. any; who B. every; whoever
C. whichever; whoever D. either; whoever
59. ---- Are you still thinking about yesterday’s game?
---- Oh, that’s _____.
A. what makes me feel excited.
B. whatever I feel excited about
C. how I feel about it
D. when I feel excited
60. People have heard what the President has said; they are waiting to see ____ he will do.
A. how B. what C. when D. that
61. If there were no subjunctive mood, English ___ much easier.
A. will be B. would have been
C. could have been D. would be
62. The guard at the gate insisted that everybody ____ the rules.
A. obeys B. obey C. will obey D. would obey
63. If she had worked harder, she ____.
A. would succeed B. had succeeded
C. should succeed D. would have succeeded
64. If we had followed his plan, we could have done the work better with ____ money and ____ people.
A. little; fewer B. fewer; less C. less; fewer D. less; few
65. The rice ____ if you had been more careful.
A. would not be burning B. would not burn
C. would not have been burn D. would not burn
66. I insist that a doctor ____ immediately.
A. has been sent for B. sends for
C. will be sent for D. be sent for
67. I wish I ____ you yesterday.
A. seen B. did see C. had seen D. were to see
68. If my lawyer ____ here last Saturday, he ____ me from going.
A. had been; would have prevented
B. had been; would prevent
C. were; would prevent D. were; would have prevented
69. Without electricity human life ____ quite different today.
A. is B. will be C. wouldn’t be D. won’t be
70. ----- We could have walked to the station; it was so near
----- Yes. A taxi _____ at all necessary.
A. wasn’t B. hadn’t been C. wouldn’t be D. won’t be
71. If my lawyer ______ here last Saturday, he ____ me from going.
A. had been; would have prevented
B. had been; would prevent
C. were; would prevent
D. were; would have prevented
72. ___ the expense, I _____ Italy .
A. If it were not for; go B. If it were not for; would go
C. Weren’t it for; will go
D. If it hadn’t been; would have gone
73. ---- Did you remind him of the meeting?
---- No, if I _____ at home, I would have.
A. were B. had been C. were to D. should be
74. How I wish it ___! If it __ in a few days, the crops would be saved.
A. will rain; rained B. would rain; should rain
C. should rain; rains D. would rain; had rained
75. I wish I ____ the book yesterday. But I was too busy.
A. had finished to write B. could have finished writing.
C. could have finished to write D. might finish writing
76. ---- Do you want him to lend you some money?
---- I wish he ____.
A. should B. would C. did D. had
77. He feels as if he ______ on a cloud.
A. is floating B. floated C. had floated D. were floating
78. When a pencil is partly in a glass of water, it looks as if it ____.
A. beaks B. has broken C. were broken D. had been broken
79. Jack ____ yet, otherwise he would have telephoned me.
A. mustn’t have arrived B. shouldn’t have arrived
C. can’t have arrived D. need not have arrived
80. ---- I didn’t think the job would be so hard.
---- You _____ of that earlier.
A. must think B. should think
C. must have thought D. ought to have thought
81. I finally got the job I dreamed about. Never in my life __ so happy.
A. did I feel B. I felt C. I had felt D. had I felt
82. On the wall ___ two large portraits.
A. are hanged B. hang C. hangs D. hanged
83. ______ can you expect to get a pay rise.
A. With hard work B. Although work hard
C. Only with hard work D. Now that he work hard
84. No sooner _______ asleep than she heard a knock at the door.
A. she had fallen B. had she fallen C. she fell D. she did fall
85. Next door to ours _____, who is no less than 90.
A. lives a senior man B. that lives a senior man
C. does a senior man live D. where lives a senior man
86. Under that tall tree ______ four people, playing cards.
A. stood B. sat C. ran D. looked
87. Only when your identity had been checked, _____.
A. you are allowed in B. you will be allowed in
C. will you allow in D. will you be allowed in
88. Not until he reached the station ____ that his ticket had been left home.
A. does he realize B. he realized
C. did he realize D. he had realized
89. ---- Look! There _______.
---- Oh, yes, there _____.
A. to the policemen; go they
B. go the policemen; they go
C. are the policeman going; are going
D. went the policemen; they went
90. ---- Is that car yours?
---- No. Neither is that _____.
A. your nor is that Jack’ B. yours not is that Jack
C. yours not that is Jack’s D. yours nor is that Jack’s
91. ____ time, he’ll make a first-class tennis player.
A. Having given B. To give C. Giving D. Given
92. ----- Susan, go on. Your sister is cleaning the yard.
----- Why ____? John is sitting there doing nothing.
A. him B. he C. I D. me
93. Generally speaking, ______ according to the directions, the drug has no side effect.
A. when taking B. when taken
C. when to take D. when to taken
94. Unless ____ to speak, you should remain silent at the conference.
A. invited B. inviting C. being invited D. having invited
95. --- The boys are not doing a good job at all, are they?
----_____.
A. I guess not so B. I don’t guess
C. I don’t guess so D. I guess not
96. The main we followed suddenly stopped and looked as if ____ whether he was going in the right direction.
A. seeing b. having seen C. to have seen D. to see
97. When ____, the museum will be open to the public next year.
A. completed B. completing
C. being completed D. to be completed
98. The director gave me a better offer than _____.
A. that of Dick’s B. Dick’s C. he gave Dick D. those of Dick
99. ---- Does your brother intend to study German?
---- Yes, he intends ____.
A. / B. to C. so D. that
100. ---- Alice , why didn’t you come yesterday?
---- I _____, but I had an unexpected visitor.
A. had B. would C. was going to D. did
1-5 BDADA 6-10 AADBB 11-15 BDABD 16-20 ADDDD 21-25 BCBAC 26-30 BCBBA 31-35 ADACA 36-40 ADCAB 41-45 DDCAD 46-50 CCCAA 51-55 CABBC 56-60 AACAB 61-65 DBDCC 66-70 DCADA 71-75 ABBBB 76-80 BDCCD 81-85 DBCBA 86-90 BDCBD 91-95 DDBCD 96-100 DACBC
A. Jenny’s father bought her a lot of tapes
B. Jenny bought a lot of tapes for herself
C. a lot of tapes were bought by Jenny
D. a lot of Tapes were bought by Jenny’s father
2. Do let your mother know all the truth. She appears __ everything.
A. to tell B. to be told C. to be telling D. to have been told
3. In order to gain a bigger share in the international market, many state-run companies are striving ____ their products more competitive.
A. to make B. making
C. to have made D. having made
4. Quite a few people used to believe that disaster ___ if a mirror was broken.
A. was sure of striking B. was sure of having struck
C. was sure of struck D. was sure to strike
5. He let me repeat his instruction ____ sure that I understand what was ___ after he went away.
A. to make; to be done B. making; doing
C. to make; to do D. making; to do
6. There is a new problem involved in the popularity of private cars ___ road conditions need ____.
A. that; to be improved B. which; to be improved
C. where; improving D. when; improving
7. European football is played in 80 countries, _____ it the most popular sport in the world.
A. making B. makes C. made D. to make
8. The teacher asked us ___ so much noise.
A. don’t make B. not make
C. not making D. not to make
9. ---- How do you deal with the disagreement between the company and the customers?
---- The key ___ the problem is to met the demand ____ by the customers.
A. to solving; making B. to solving; made
C. to solve; making D. to solve; made
10. She will tell us why she feels so strongly that each of us has role ___ making the earth a better place to live.
A. to have played B. to play
C. to be played D. to be playing
11. There was a terrible noise ____ the sudden burst of light.
A. followed B. following
C. to be followed D. being followed
12. The first textbooks ___ for teaching English as a foreign language came out in the 16th century.
A. having written B. to be written
C. being written D. written
13. The next morning she found the man ___ in bed dead.
A. lying B. lie C. lay D. laying
14. What’s the language ___ in Germany .
A. speaking B. spoken C. be spoken D. to speak
15. She’s upstairs ____ letters.
A. writes B. is writing C. write D. writing
16. Most of the artists ___ to the party were from South Africa .
A. invited B. to invite C. being invited D. had been invited
17. The computer center, ___ last year, is very popular among the students in this school.
A. open B. opening C. having open D. opened
18. The speaker raised her voice but still couldn’t make herself ______.
A. hear B. being hearing C. to hear D. heard
19. The salesman scolded the give caught ____ and let her off.
A. to have stolen B. to be stealing C. to steal D. stealing
20. She set out soon after dark ____ home an hour later.
A. arriving B. to arrived C. having arrived D. and arrived
21. With trees, flowers and grass ____ everywhere, my native town had taken on a new look.
A. planting B. planted C. to plant D. to be planted
22. You will find the word “psychology” _____ under “P” in you dictionary.
A. have listed B list C. listed D. listing
23. In the past few years, we have had thousands of trees _____ around our school.
A. plant B. planted C. to plant D. being plant
24. Is this the recorder you want ____ ?
A. to have repaired B. to repair it
C. to have it repaired D. it repaired
25. She was glad to see her child well ____ care of.
A. take B. to be taken C. to know D. taking
26. The result of the entrance exams was not made _____ to the public until last Thursday.
A. knowing B. known C. to know D. to be known
27. He found them ____ at a table _____
A. sat; to play chess B. sitting; to play chess
C. seated; playing chess D. seat; play the chess
28. I can make you ____ what I say, but you can’t make yourself _____ to English.
A. understand; understand;
B. understand; understood
C. to understand; understand
D. understand; to be understood
29. The girl asked him not to leave the door ______.
A. to close B. closed C. to be closed D. closing
30. John have rushed our in a hurry, _____ the door _____.
A. leaving; unlocked B. leaving; unlocking
C. left; unlocked D. to leave; unlocking
31. ______ more attention, the tree could have grown better.
A. Given B. To give C. Giving D. Having given
32. The computer center, _____ last year, is very popular among the students in this school.
A. open B. opening C. having opened D. opened
33. Friendship is like money; easier made than _____.
A. kept B. to be kept C. keeping D. being kept
34. _____ in thought, he almost ran into the car in front of him.
A. Losing B. Having lost C. Lost D. To lose
35. _____ the general state of his health, it may take him a while to recover from the operation.
A. Given B. To give C. Giving D. Having given
36. ______ such heavy pollution already, it may now be too late to late to clean up the river.
A. Having suffered B. Suffering C. To suffer D. Suffered
37. The research is so designed that once ___ nothing can be done to change it.
A. begins B. having begun C. beginning D. begun
38. ______ in 1636, Harvard is one of the most famous universities in the United States .
A. Being founded B. It was founded C. Founded D. Founding
39. When ______, the museum will be open to the public next year.
A. completed B. completing
C. being completed D. to be completed
40. Prices of daily goods ____ through a computer can be lower than store prices.
A. are bought B. bought C. been bought D. buying
41. He asked ____ for the violin.
A. did I pay how much B. I paid how much
C. how much did I pay D. how much I paid
42. Someone is ringing the doorbell. Go and see _____.
A. who is he B. who he is C. who is it D. who it is
43. Can you make sure _____ the gold ring?
A. where Alice had put B. where had Alice put
C. where Alice has put D. where has Alice put
44. _____ she couldn’t understand was _____ fewer and fewer students showed interest in her lessons.
A. What; why B. That; what C. What; because D. Why; that
45. Little Tommy was reluctant to tell the schoolmaster _____ he had done the day before.
A. that B. how C. where D. what
46. _____ you don’t like him is none of my business.
A. What B. Who C. That D. Whether.
47. ______ the 20078 Olympic Games will be held in Beijing is not known yet.
A. That B If C. Whether D. Whenever
48. What the doctors really doubt is _____ my mother will recover from the serious disease soon.
A. when B. how C. whether D. why
49. _____ is no possibility ___ Bob can win the first prize in the match.
A. There; that B. It; that C. There; whether D. It; whether
50. These wild flowers are so special I would do __ I can to save them.
A. whatever B. that C. which D. whichever
51. Sarah hoped to become a friend of ___ shares her interests.
A. anyone B. whomever C. whoever D. no matter who
52. ____ we can’t get seems better than _____ we have.
A. What; what B. What; that C. That; that D. That; what
53. ______ we’ll go camping tomorrow depends on the weather.
A. If B. Whether C. That D. Where
54. It is generally considered unwise to give a child _____he or she wants.
A. however B. whatever C. whichever D. whenever
55. Dr. Black comes from either Oxford or Cambridge . I can’t remember ___.
A. where B. there C. which D. that
56. It was a matter of ____ would take the position.
A. who B. whoever C. whom D. whomever
57. ---- I drove to Zhuhai for the air show last week.
---- Is that ____ you had a few days off?
A. why B. when C. what D. where
58. Eat ___ cake you like and leave the others for ___ comes in late.
A. any; who B. every; whoever
C. whichever; whoever D. either; whoever
59. ---- Are you still thinking about yesterday’s game?
---- Oh, that’s _____.
A. what makes me feel excited.
B. whatever I feel excited about
C. how I feel about it
D. when I feel excited
60. People have heard what the President has said; they are waiting to see ____ he will do.
A. how B. what C. when D. that
61. If there were no subjunctive mood, English ___ much easier.
A. will be B. would have been
C. could have been D. would be
62. The guard at the gate insisted that everybody ____ the rules.
A. obeys B. obey C. will obey D. would obey
63. If she had worked harder, she ____.
A. would succeed B. had succeeded
C. should succeed D. would have succeeded
64. If we had followed his plan, we could have done the work better with ____ money and ____ people.
A. little; fewer B. fewer; less C. less; fewer D. less; few
65. The rice ____ if you had been more careful.
A. would not be burning B. would not burn
C. would not have been burn D. would not burn
66. I insist that a doctor ____ immediately.
A. has been sent for B. sends for
C. will be sent for D. be sent for
67. I wish I ____ you yesterday.
A. seen B. did see C. had seen D. were to see
68. If my lawyer ____ here last Saturday, he ____ me from going.
A. had been; would have prevented
B. had been; would prevent
C. were; would prevent D. were; would have prevented
69. Without electricity human life ____ quite different today.
A. is B. will be C. wouldn’t be D. won’t be
70. ----- We could have walked to the station; it was so near
----- Yes. A taxi _____ at all necessary.
A. wasn’t B. hadn’t been C. wouldn’t be D. won’t be
71. If my lawyer ______ here last Saturday, he ____ me from going.
A. had been; would have prevented
B. had been; would prevent
C. were; would prevent
D. were; would have prevented
72. ___ the expense, I _____ Italy .
A. If it were not for; go B. If it were not for; would go
C. Weren’t it for; will go
D. If it hadn’t been; would have gone
73. ---- Did you remind him of the meeting?
---- No, if I _____ at home, I would have.
A. were B. had been C. were to D. should be
74. How I wish it ___! If it __ in a few days, the crops would be saved.
A. will rain; rained B. would rain; should rain
C. should rain; rains D. would rain; had rained
75. I wish I ____ the book yesterday. But I was too busy.
A. had finished to write B. could have finished writing.
C. could have finished to write D. might finish writing
76. ---- Do you want him to lend you some money?
---- I wish he ____.
A. should B. would C. did D. had
77. He feels as if he ______ on a cloud.
A. is floating B. floated C. had floated D. were floating
78. When a pencil is partly in a glass of water, it looks as if it ____.
A. beaks B. has broken C. were broken D. had been broken
79. Jack ____ yet, otherwise he would have telephoned me.
A. mustn’t have arrived B. shouldn’t have arrived
C. can’t have arrived D. need not have arrived
80. ---- I didn’t think the job would be so hard.
---- You _____ of that earlier.
A. must think B. should think
C. must have thought D. ought to have thought
81. I finally got the job I dreamed about. Never in my life __ so happy.
A. did I feel B. I felt C. I had felt D. had I felt
82. On the wall ___ two large portraits.
A. are hanged B. hang C. hangs D. hanged
83. ______ can you expect to get a pay rise.
A. With hard work B. Although work hard
C. Only with hard work D. Now that he work hard
84. No sooner _______ asleep than she heard a knock at the door.
A. she had fallen B. had she fallen C. she fell D. she did fall
85. Next door to ours _____, who is no less than 90.
A. lives a senior man B. that lives a senior man
C. does a senior man live D. where lives a senior man
86. Under that tall tree ______ four people, playing cards.
A. stood B. sat C. ran D. looked
87. Only when your identity had been checked, _____.
A. you are allowed in B. you will be allowed in
C. will you allow in D. will you be allowed in
88. Not until he reached the station ____ that his ticket had been left home.
A. does he realize B. he realized
C. did he realize D. he had realized
89. ---- Look! There _______.
---- Oh, yes, there _____.
A. to the policemen; go they
B. go the policemen; they go
C. are the policeman going; are going
D. went the policemen; they went
90. ---- Is that car yours?
---- No. Neither is that _____.
A. your nor is that Jack’ B. yours not is that Jack
C. yours not that is Jack’s D. yours nor is that Jack’s
91. ____ time, he’ll make a first-class tennis player.
A. Having given B. To give C. Giving D. Given
92. ----- Susan, go on. Your sister is cleaning the yard.
----- Why ____? John is sitting there doing nothing.
A. him B. he C. I D. me
93. Generally speaking, ______ according to the directions, the drug has no side effect.
A. when taking B. when taken
C. when to take D. when to taken
94. Unless ____ to speak, you should remain silent at the conference.
A. invited B. inviting C. being invited D. having invited
95. --- The boys are not doing a good job at all, are they?
----_____.
A. I guess not so B. I don’t guess
C. I don’t guess so D. I guess not
96. The main we followed suddenly stopped and looked as if ____ whether he was going in the right direction.
A. seeing b. having seen C. to have seen D. to see
97. When ____, the museum will be open to the public next year.
A. completed B. completing
C. being completed D. to be completed
98. The director gave me a better offer than _____.
A. that of Dick’s B. Dick’s C. he gave Dick D. those of Dick
99. ---- Does your brother intend to study German?
---- Yes, he intends ____.
A. / B. to C. so D. that
100. ---- Alice , why didn’t you come yesterday?
---- I _____, but I had an unexpected visitor.
A. had B. would C. was going to D. did
1-5 BDADA 6-10 AADBB 11-15 BDABD 16-20 ADDDD 21-25 BCBAC 26-30 BCBBA 31-35 ADACA 36-40 ADCAB 41-45 DDCAD 46-50 CCCAA 51-55 CABBC 56-60 AACAB 61-65 DBDCC 66-70 DCADA 71-75 ABBBB 76-80 BDCCD 81-85 DBCBA 86-90 BDCBD 91-95 DDBCD 96-100 DACBC