1. ---- Must I do the work now? ----- No, you ________. You may do it later.
A. can’t B. mustn’t C. needn’t D. shouldn’t
2. --- May we play football in the street? ---- No, you _____. It’s dangerous.
A. can B. mustn’t C. may D. may not
3. ---- Must I finish that work today? ---- No, you ____. You may finish it in three days.
A. mustn’t B. needn’t C. shouldn’t D. couldn’t
4. ---- Where is mom now? ---- I’m not sure. She ____ be in the kitchen.
A. shall B. may C. need D. must
5. Cars, buses and bikes _____ stop when the traffic light is red.
A. can B. must C. may D. need
6. --- I don’t mind telling you what I know. ---- You _____, I’m not asking you for it.
A. needn’t B. mustn’t C. may not D. can’t
7. If you _____ do your homework now, you must finish it tomorrow.
A. may not B. must not C. can not D. need not
8. ---- Must we tidy the classroom after school? ---- No, you _____. You can do that tomorrow morning.
A. must B. mustn’t C. need D. needn’t
附答案：CBBBBACD
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