53．I didn’t see your sister at the meeting. If she ________, she would have met my brother.

　A. has come　　　　　　　　　　　　　　　　　　　 B. did come

　C. came　　　　　　　　　　　　　　　　　　　　　　 D. had come

52．-I didn’t catch the first train this morning.

　　-You ________ the first train if you ________ earlier.

　A. would catch; had got up

　B. could catch; should get up

　C. would have caught; had got up

　C. would catch; got up

51．It is requested that Li Ming ________ at the class meeting on behalf of us.

　A. will speak　　　　　　　　　　　　　　　　　　 B. speaks

　C. would speak　　　　　　　　　　　　　　　　 D. speak

50．The father insisted his daughter ________ a rich man.

　A. would be engaged to　　　　　　　　　　　 B. be engaged to

　C. should engaged to　　　　　　　　　　　　　 D. must be engaged to

49．He is talking so much about Britain as if he ________ there.

　A. had been　　　　　　　　　　　　　　　　　　　 B. has been

　C. was　　　　　　　　　　　　　　　　　　　　　　　 D. had gone

48．The manager was angry and ordered that this work ________ tomorrow.

　A. be finished　　　　　　　　　　　　　　　　　 B. finish　

　C. was finished　　　　　　　　　　　　　　　　 D. would finish

47．You didn’t let me drive. If we ________ in turn，you ________ so tired.

　A. drove; didn’t get

　B. drove; wouldn’t get

　C. were driving; wouldn’t get

　D. had driven; wouldn’t have got

46．When a pencil is partly in a glass of water，it looks as if it ________.

　A. breaks　　　　　　　　　　　　　　　　　　　　　 B. has broken

　C. were broken　　　　　　　　　　　　　　　　　 D. had been broken

45．His silence at the meeting suggested that he ________ to your plan.

　A. didn’t agree　　　　　　　　　　　　　　　　　 B. hadn’t agreed

　C. wouldn’t agree　　　　　　　　　　　　　　　 D. not agree

44．-The experiment has failed!

　　-I suggest that you ________ again.

　A. try　　　　　　　　　　　　　　　　　　　　　　　　 B. trying

　C. will try　　　　　　　　　　　　　　　　　　　　 D. would try