6 I had some difficulty in carrying out the plan.
A making
B keeping
C changing
D implementing
7 Mr. Johnson evidently regarded this as a great joke
A readily
B casually
C obviously
D simply
8 We all think that Mary's husband is a very boring person.
A shy
B stupid
C dull
D selfish
9 The workers in that factory manufacture furniture.
A promote
B paint
C produce
D polish
10 They only have a limited amount of time to get their points across
A large
B total
C small
D similar
參考答案：6. D 7. C 8. C 9. C 10. C