4must否定回答：mustn’t 禁止 vs needn’tdon’t have to 不必

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( C )1. —Must I finish homework now?

—No, you ______. You can do it after dinner.

A. mustB. mustn’tC. needn’tD. can’t

（）2. You ______ run in the hallway. It’s very dangerous.

A. needn’tB. mustn’tC. don’t have toD. can

（）3. —Must I get up at six tomorrow morning?—No, you ______. There is no early class.

A. don’t have toB. mustn’tC. mustD. can’t

（）4. We ______ touch the wet paint on the wall.

A. needn’tB. don’t have toC. canD. mustn’t

（）5. —Must we clean the classroom today?—______. We can clean it tomorrow.

A. Yes, you mustB. No, you mustn’tC. No, you needn’tD. Yes, you can

（）6. You ______ buy new pens. The old ones still work well.

A. mustn’tB. don’t have toC. can’tD. must

（）7. Students ______ bring mobile phones into the exam room.

A. needn’tB. don’t have toC. canD. mustn’t

（）8. —Must I hand in the drawing right now?—No, you ______. You may give it to me this afternoon.

A. needn’tB. mustn’tC. mustD. couldn’t

（）9. You ______ take an umbrella. The weather is sunny and hot.

A. mustn’tB. can’tC. don’t have toD. must

（）10. —Must he stay at home all day?—No, he ______. He can go out to play.

A. mustn’tB. doesn’t have toC. mustD. can’t

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