I am sorry you've been waiting so long, but it'll still be some time ________ the professor gets back.   

试卷相关题目

• 1_____ discoveries of new evidence, the debate over Darwin's theory of evolution still continues.

  A.Despite

  B.Except

  C.Through

  D.Besides

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• 2If you are traveling _____ the customs are really foreign to your own, please do as the Romans do ?

  A.in which

  B.what

  C.when

  D.where

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• 3Jack wasn't saying anything,but the teacher smiled at him ________ he had done something very clever.     

  A.as if

  B.in case

  C.while

  D.though

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• 4— I'm going to have lunch. Do you mind talking about your plan ____ lunch?— All right. I'll wait here in the office.

  A.after

  B.before

  C.over

  D.until

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• 5It is not immediately  clear ____   the financial crisis will be over.       

  A.since

  B.what

  C.when

  D.whether

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• 6— Hasn't the thief admitted his crime by now?   — No, ______ questioned many times.

  A.if

  B.though

  C.unless

  D.once

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• 7John thinks it won't be long ____  he is ready for his new job.    

  A.when

  B.after

  C.before

  D.since

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• 8You'd better leave now ______ you can catch the early bus.   

  A.as soon as

  B.because

  C.so that

  D.unless

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• 9______ Jason is willing to help, he doesn't have much time available.

  A.As

  B.Since

  C.While

  D.Unless

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• 10Friends are angels who lift us to our feet _____ our wings have trouble remembering how to fly.

  A.unless

  B.because

  C.though

  D.when

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