57. Very loud noise_____ make people ill or drive them mad.

A. should　　 B. can　　 C. need　　 D. must

56. _____ he come, the problem would be settled.

A. Would　　 B. Should　　 C. Shall　　 D. If

55. Without your help, I _____ the exam last term.

A. failed in　　 B. would have failed　 c. wouldn’t pass　　 D. would fail

54. The young man insisted that he _____ nothing wrong and _____ free.

A. did, set　　 B. had done, should be set　　 C. do ,be set　　 D. had done, must be set

53. you must be a student, _____ you?

A. wasn’t　　　 B. are　　 C. mustn’t　　 D. aren’t

52. We all agreed to her suggestion that we _____ to the Great Wall for sightseeing.

A. will go　　 B. go　 c. shall go　　 D. should have gone

51. there was a half smile on his face which suggested he _____ happy to have given his life for his country.

A. was　　 b. should be　　 C. would be　　 D. were

50. ____ the fog, we should have reached our school.

A. because of　 B. In spite of　　 C. In case of　　 D. But for

49. He had an expression of resentment(不高兴), as if Martin ____ a fool of him.

A. had made　　 B makes　　 C. made　 D. would make

48. ---Would you have told him the answer had it been possible?

　 ---I would have, but I　 ____ so busy then.

A. had been　　 B. were　　 C. was　　 D. would be