You can keep the book for another week, but you ______ lend it to others. [
题型：同步题难度：来源：
| You can keep the book for another week, but you ______ lend it to others. |
| [ ] |
A. needn"t
B. mustn"t
C. aren"t
D. must |
答案
| B |
举一反三
| He can go with you, but I ______. |
| [ ] |
A. am not
B. can"t
C. don"t
D. must |
| Bob can"t come out to play because he ______ help Dad in the garden. |
| [ ] |
A. can
B. can"t
C. has to
D. must |
—Must I finish my homework now?
—No, you ______. But you ______ finish it after supper. |
| [ ] |
A. needn"t, must
B. mustn"t, must
C. needn"t, need
D. mustn"t, may |
| Both of his parents died of illness so he ______ support his family at the age of 14. |
| [ ] |
A. must
B. should
C. could
D. had to |
| This book ______ be Peter"s. His is still in his bag. |
| [ ] |
A. may not
B. can"t
C. mustn"t
D. needn"t |
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