6.　　　　 It is said that there are plenty of hotels in that town. There _____ be any difficulty for you to find somewhere to stay.

A. wouldn’t　　　 B. mustn’t　　　 C. shouldn’t　　　 D. needn’t

5.　　　　 When Marx was in London, he _____ read at the library for hours.

A. would　 B. might　 C. could　 D. should

4.　　　　 Keep up good state of mind even if you _____ fail plenty of times.

A. must　 B. will　 C. can　 D. should

3.　　　　 — Are you coming to Jeff’s party?

— I’m not sure. I _____ go to the concert instead.

A. must　 B. would　 C. should　 D. might

2.　　　　 — Mary’s got mad and has been sent to the mental hospital. Did you tell her boss about that?

— Yes, but I _____ her husband first.

A. should have told　　 B. shouldn’t have told　　 C. must have told　 D. needn’t have told

1.　　　　 My English-Chinese dictionary has disappeared. Who _____ have taken it?

A. should　 B. must　 C. could　　　 D. would

54.　　 -Is there any flight to New York today?

--I think there ____ be, for the weather is too bad.

A mustn’t 　　　B may not 　　　C shouldn’t 　　　D can’t

53.　　 If I ________ plan to do anything I wanted to. I’d like to go to Tibet and travel through as much of it as possible.

A. would　　　　　 B. could　　　　 C. had to　　　 D. ought to

52.　　 Naturally, after I told her what to do, my daughter _____ go and do the opposite!

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

51.　　 　He hesitated for a moment before kicking the ball, otherwise he ______ a goal.

A. had scored　　　 B. scored　　　　　 C. would score　　　　 D. would have scored