48. With so much work on hand, you _______ to see the game last night.

A. mustn't go 　　　　　　　　　　　　　　　　　　　　　 B. shouldn't go

C. couldn't have gone 　　　　　　　　　　　　 D. shouldn't have gone

47. I didn't see her in the meeting room this morning. She _______ at the meeting.

A. mustn't have spoken 　　　　　　　　　　　 B. shouldn't have spoken

C. needn't have spoken 　　　　　　　　　　　 D. couldn't have spoken

46. If Alice _______ this afternoon, the meeting should be put off.

A. would not come 　　　　　　　　　　　　　 B. might not come

C. should not come 　　　　　　　　　　　　　 D. could not come

45. "Would you come and join them?"

"I wish I _______. But I am busy at this moment.

A. can't 　　　　　　　　 B. couldn't 　　　　　 C. could 　　　　　　　　　　 D. can

44. We the manager, but no one _____ his telephone number.

A. could have called, knew 　　　　　　　　 B. could have called, had known

C. could call, had known 　　　　　　　　　 D. could call, knew

43. We _______ the work so early without your help.

A. couldn't finish 　　　　　　　　　　　　　　　 B. can't finish

C. couldn't have finished 　　　　　　　　　 D. can't have finished

42. Isn't it strange that the lazy boy pass the exam?

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

41. My son ____ the examination, but he wasn't careful enough.

A. might be able to pass 　　　　　　　　　　 B. must have passed

C. could have passed 　　　　　　　　　　　　 D. were able to pass

40. ______ open the door for you ?

A. Would you like that I 　　　　　　　　　　 B. Do you want that I

C. Will I 　　　　　　　　　　　　　　　　　　　　　　　　 D. Shall I

39. Some people feel that handguns______.

A. should control 　　　　　　　　　　　　　　　 B. should be controlled

C. must be controlling 　　　　　　　　　　　 D. can be control