37. To succeed in a difficult task,_____.
A. one needs to work hard B. to work hard is needed
C. you need be a hard working person D. to work hard is what one needs
36. You miss the lesson, though we have it on Thursday.
A. mustn't...needn't B. needn't....mustn't
C. mustn't...mustn't D. needn't...needn't
35. Must we come tomorrow?
A. No, you can't B. No, you needn't
C. No, you mustn't D. No, you may not
34. you be happy!
A. May B. Can C. Must D. Would
33. Since it is already midnight, we______.
A. had better leaving B. ought to have leave
C. should take our leave D. might as well leave
32. They have not finish the work up to now.
____Well, they ______
A. should have B. should C. ought to D. ought have
31. "When _____ he leave the hospital?" I asked the doctor.
A. will B. shall C. can D. may
30. The streets are all dry. It_____ during the night.
A. can't have rained B. must have rained
C. couldn't rain D. shouldn't have rained
29. As a soldier, you do as the head tells you.
A. will B. shall C. may D. ought
28. I give you an answer tomorrow. I promise!
A. must B. will C. may D. shall