________ when you cross the road.A  B  C  D 

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• 1Must I finish my homework now、— _______. You can do it tomorrow.

  A.No, you mustn’t

  B.No, you needn’t

  C.Yes, you must

  D.Yes, you need

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• 2let her __________ swimming.

  A.no to go

  B.not go

  C.go not

  D.not goes

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• 3_________ the job by himself.  

  A.

  C.

  D.A.Let him doB.Let he do C.Let him to doD.Let he to do

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• 4_______ swim in the river alone, Karen. It’s too dangerous. 

  A.Not

  B.Don’t

  C.Doesn’t

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• 5_______ on the grass. 

  A.To walk

  B.Not to walk

  C.Walk

  D.Don’t walk

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• 6Please be ________！We are in the library．

  A.noisy

  B.quiet

  C.sorry

  D.happy

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• 7________ run in the classroom，boys!

  A.Not

  B.Don't

  C.Can't

  D.Doesn't

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• 8You must ________ the rules.They are good for you.

  A.follow

  B.follows

  C.to follow

  D.following

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• 9__________ happy.

  A.Do

  B.Be

  C.Don't

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