The scientists are ________ a research ________ the cause of heart diseases.

试卷相关题目

• 1_______ wooden buildings helps to protect them from damage due to weather .

  A.Painting

  B.Painted

  C.The paint

  D.By painting

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• 2A ceremony was held yesterday ________ those who died in the anti-fascist war.

  A.in honor

  B.in honor of

  C.in the honor of

  D.honor

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• 3Another man ________ for the big star in the dangerous scenes.

  A.stands by

  B.stands for

  C.stands in

  D.stands to

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• 4Who is ________ the fire?

  A.to blame for starting

  B.to blame to start

  C.to be blamed for starting

  D.to be blamed to start

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• 5They then listened to the boy ________ the article ________ on the blackboard.

  A.read; writing

  B.reading; writing

  C.to read; written

  D.read; written

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• 6Anyone ________ the conference must show their passes.

  A.allows attend

  B.allowed attending

  C.allowed to attend

  D.allows attending

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• 7________ his manners, he put his feet up on the desk.

  A.Forgotten

  B.Forgetting

  C.Being forgotten

  D.Being forgetting

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• 8The new equipment, if ________ correct, will work for ________ ten years.

  A.uses ,at most

  B.used ,at least

  C.using ,at least

  D.use ,at most

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• 9It was a story with a happy ending. Antonio was saved ________.

  A.in the end

  B.at the end

  C.by the end

  D.stands to

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• 10I wish that we ________ in a world where there ________ less pollution and smaller population.

  A.live; were

  B.lived; were

  C.lived; are

  D.live; are

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