In most countries, the metric system（  ）for all measurement。

试卷相关题目

• 1The doctor said measures（  ）to prevent the disease from spreading。

  A.have taken

  B.hadtaken

  C.aretaken

  D.hadbeentaken

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• 2Many difficulties（  ）by the climbers before the rescue team came。

  A.have overcome

  B.had been overcame

  C.had overcome

  D.had been overcome

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• 3The three tows at the .front（  ）for our guested。

  A.hasbeenreserved

  B.is beenreserving

  C.arereserved

  D.arebeing reserved

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• 4Greater efforts to increase wheat production（  ）if bread Mintage is to be avoided。

  A.must make

  B.must be made

  C.had to make

  D.had made

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• 5They（  ）into two groups and（  ）to finish the work before Friday。

  A.aredivided, areordered

  B.weredivided,ordered

  C.hadbeendivided, ordering

  D.hasdivided,hasordered

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• 6I can hear cries for help,I believe someone（  ）by street gangs。

  A.is attacked

  B.be attacked

  C.isbeing attacked

  D.been attacked

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• 7Last week the teacher, as well as a number of students，（  ）to attend the party。

  A.was asked

  B.had been asked

  C.be asked

  D.were asked

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• 8At last he（  ）to Oxford University as a visiting scholar。

  A.has been invited

  B.had beat invited

  C.was invited

  D.wasbeing invited

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• 9May I have a look at your picture? Sorry, but it（  ）in the drawer。

  A.waslocked up

  B.has been locked up

  C.had been locked up

  D.locked up

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• 10The building of a new airport（  ）and it（  ）soon。

  A.was agreed on，wasto start

  B.had agreed on, would to start

  C.has been agreed on, is goingto start

  D.agreed, has been started.

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