Cells either divide too fast or at the wrong time, ________ difficult for the body to function ________.

试卷相关题目

• 1“The secret to success________ in hardworking．” the famous man said．

  A.is lying

  B.lies

  C.hides

  D.exists

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• 2Who would you rather _________ charge of this job, George or Jack?

  A.have to take

  B.to have take

  C.have take

  D.have taken

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• 3The schools in the future will ________ be quite different from what they are today.

  A.probably

  B.probable

  C.maybe

  D.may be

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• 4The ________ that women ________ during the war ________ great.

  A.part ;played ;were

  B.parts ;played ;were

  C.part ;played ;was

  D.parts ;playing ;was

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• 5______ the main street ______ you'll find the drugstore.

  A.Crossing…and

  B.Crossing…or

  C.Cross…and

  D.To cross…and

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• 6To take a walk after supper seems to me a rule ________.

  A.to never break

  B.never to have broken

  C.never to be broken

  D.never to be breaking

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• 7Some people think that air pollution _________ this disease.

  A.is led to

  B.result from

  C.cause

  D.contributes to

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• 8He ________ sitting.

  A.kept

  B.kept on

  C.is kept to

  D.is kept on

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• 9He took us to ________ prison, ________was full of civil rights marchers.

  A.a; where

  B.the; which

  C./; it

  D.the; where

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• 10Nothing but cars________ in the shop．

  A.is sold

  B.are sold

  C.were sold

  D.are going to sell

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