58. Please don't make a noise.　　　　　　　 _______ .　 I'll be as quiet as a mouse.

A. Yes, I won't 　　 B. No, I won't 　　　 C. No, I will 　　　　 D. Yes, I will

57. Could I borrow your dictionary?　　 Yes, of course you______.

A. might 　　　　　　　 B. will 　　　　　　　　 C. can 　　　　　　　　 D. should

56. 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

55. He _____ you more help, even though he was very busy.

A. might have given 　　　　　　　　　　　　 B. might give

C. may have given 　　　　　　　　　　　　　　　　　 D. may give

54. May I stop here?　　　 No, you ____.

A. mustn't 　　　　　　 B. might not 　　　　 C. needn't 　　　　　　 D. won't

53. We _______ for her because she never came.

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

C. mustn't wait 　　　　　　　　　　　　　　　　 D. needn't wait

52. Please open the window, ________?

A. can't you 　　　　 B. aren't you 　　　　 C. do you 　　　　　　 D. will you

51. It's still early, you ______.

A. mustn't hurry 　　　　　　　　　　　　　　　 B. wouldn't hurry

C. may not hurry 　　　　　　　　　　　　　　　 D. don't have to hurry

50. There was plenty of time. She ______.

A. mustn't have hurried 　　　　　　　　　　　　　　 B. couldn't have hurried

C. must not hurry 　　　　　　　　　　　　　　 D. needn't have hurried

49. I thought you _______ like something to read, so I have brought you some books.

A. may 　　　　　　　　 B. might 　　　　　　　 C. could 　　　　　　　　　　 D. must