A. Certainly B.No, you needn’t C.No, you mustn’t D.No, you may not
【解析】May I…?的否定答语为No, you can’t/ mustn’t.；Must I …?否定答语为No，you
needn’t/don’t have to.;Can I …?的否定答语为No，you can’t.在口语交际中，要体会句子中的情感差别。答案：C
【情态动词活学巧练】
1
1 John___ come to see us tonight, but he isn't very sure yet. A. may B. canC. has to D. must 2 They ___ do well in the exam. A. can be able to B. be able toC. can able to D. are able to
3—May I take this book out?—No, you___. A. can't B. may not C. needn't D. aren't
4 You___ go and see a doctor at once because you're got a fever.
A. can B. must C. dare D. would
5—Can you speak Japanese?—No, I____. A. mustn't B. can't C. needn't D. may not
2
1—He___ be in the classroom, I think.—No, he ___ be in the classroom. I saw him go home a minute ago.
A. can; may not B. must; may not C. may; can't D. may; mustn't
2—Shall I get one more cake for you, Dad?—Thanks, but you___, I've had enough.
A. may not B. must not C. can't D. needn't
3 Even the top students in our class can't work out this problem, so it
A. may B. must C. can D. need
4 He isn't at school. I think he ___ be ill. A. can B. shall C. must D. has to
5 ___ I take this one? A. May B. Will C. Are D. Do
3
1 The children___ play football on the road. A. can't B. can C. mustn't D. must
2 You ___ be late for school again next time. A. mustn't B. needn'tC. don't have to D. don't need to 3—Must I do my homework at once?—No, you___. A. needn't B. mustn't C. can't D. may not 4
1 His arm is all right. He___ go and see the doctor.
A. has not to B. don't have toC. haven't to D. doesn't have to
2 He had to give up the plan, ___ he? A. did B. didn't C. does D. doesn't
3 They had to walk here, ___ they? A. mustn't B. did C. didn't D. hadn't
5