英語四級考試技能訓(xùn)練結(jié)構(gòu)詞匯練習(xí)二3

19. ________ on a clear day, far from the city crowds, the mountain gives you a sense of peace.
     A) Walking
     B) If walking
     C) When you are walking
     D) While walking
     20. We finally managed to ________ the committee's approval of our plan.
     A) secure
     B) require
     C) exert
     D) execute
     21. Nowhere else along the coast ________ such shallow water so far from land.
     A) there is
     B) is there
     C) it is
     D) is it
     22. Dr. Yang is a well-known scientist and, _________ he has won the Nobel Prize.
     A) after all
     B) above all
     C) not at all
     D) in general
     23. "My sister will be here tomorrow." "Oh, I thought that she ________ today."
     A) will come
     B) comes
     C) is coming
     D) was coming
     24. Scarcely had he gone out ________ .
     A) that it started to snow
     B) than it started to snow
     C) when it started to snow
     D) and it started to snow
     25. The ________ of the airplane were found in the deep forest.
     A) vessels
     B) tissues
     C) worships
     D) wrecks
     26. As there was no sound evidence against Davis, the judge declared him ________ of the crime.
     A) innocent
     B) guilty
     C) justified
     D) incredible
     27. From what's on his face I gather that he is not keen ________ being in this concert at all.
     A) for
     B) of
     C) in
     D) on
     28. If you suspect that the illness might be serious you should not ________ going to the doctor.
     A) hold back
     B) hold up
     C) put aside
     D) put off
     29. Don't you consider ________ bad manners to be so noisy on such an occasion?
     A) this
     B) that
     C) it
     D) them
     30. The chairman requested that ________ .
     A) the members study the problem more carefully
     B) the members studied the problem more carefully
     C) the problem was more carefully studied
     D) with more carefulness the problem could be studied