Continue heating until steam _____.

试卷相关题目

• 1—I'm sorry to keep you waiting. —Oh, not at all. I _____ here only a few minutes.

  A.am

  B.was

  C.have been

  D.will be

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• 2I _____ the book at all.

  A.don't like

  B.like

  C.am fond of

  D.would like

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• 3—You look quite tired. —I _______ the project here in order to meet the deadline.

  A.have done

  B.did

  C.had done

  D.have been doing

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• 4Li Ming, as well as some of his classmates, ______voluntary work now.

  A.are doing

  B.is doing

  C.do

  D.have done

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• 5I first met Mr Zhao nine years ago. He ____ at a chemical college at that time.

  A.had worked

  B.has worked

  C.was working

  D.had been working

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• 6The bus came after I _____ for about half an hour.

  A.had been waiting

  B.have been waiting

  C.have waited

  D.was waiting

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• 7_____ a noise just then?

  A.Have you heard

  B.Were you hearing

  C.Are you hearing

  D.Did you hear

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• 8Since the mid-1980's, growing numbers of Asians ____ in New Zealand, and they ____ about six percent of the total population．

  A.had settled; make of

  B.have settled; make up

  C.settled; make up of

  D.are settling; make up for

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• 9He is pleased to think that he ______ himself on the beach at this time next week.

  A.will enjoy

  B.is enjoying

  C.will be enjoying

  D.enjoys

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• 10I saw that he _____ at seven o'clock last night.

  A.still worked

  B.is still working

  C.was still working

  D.had been working

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