It is the second time that he________ to the zoo.    

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• 1So involved in his business _________ that he can hardly accompany his wife and child at weekends.

  A.the manager has become

  B.becomes the manager

  C.has become the manager

  D.has the manager become

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• 2Seldom______computer games ever since he entered college.

  A.did he play

  B.has he played

  C.he played

  D.he has played

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• 3The scientists claimed( 声称) to _______ a jet plane that uses atomic energy as propelling _____, but they can’t produce an atom of evidence to prove it.   

  A.design; power

  B.have designed; power

  C.design; force

  D.have designed; strength

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• 4— Would you care for a cup of coffee?  — I ________ one. Thank you just the same.  

  A.had

  B.have had

  C.would have

  D.will have

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• 5All that can be eaten ____  eaten up.    

  A.are being

  B.has been

  C.had been

  D.have been

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• 6—Where's Peter?— He      to the library, but I'm not sure.

  A.may have gone

  B.must have gone

  C.should go

  D.might go

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• 7Mum, I arrived at the train station twenty minutes ago, but Betty          up yet.

  A.hadn't turned

  B.won't turn

  C.hasn't turned

  D.didn't turn

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• 8-Look! Somebody       the sof

  A.-Well, it wasn’t me. I didn’t do it. A.is cleaning

  B.was cleaning

  C.has cleaned

  D.had cleaned

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• 9The Smiths________through millions of ups and downs since they moved to Sydney.

  A.have gone

  B.had gone

  C.went

  D.has gone

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• 10Professor James will give us a lecture on the Western culture, but when and where _______ yet.

  A.hasn’t been decided

  B.haven’t decided

  C.isn’t being decided

  D.aren’t decided

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