The  fact  has  worried  many  scientists  _______ the earth is becoming warmer and warmer these years.     

试卷相关题目

• 1________ is no possibility ________ Bob can win the first prize in the match.

  A.There; that

  B.It; that

  C.There; whether

  D.It; whether

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• 2So far there is no proof ______ people from other planets do exist.

  A.how

  B.what

  C.which

  D.that

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• 3I don't think she had any idea _______ she would end up when she began the novel.

  A.where

  B.what

  C.that

  D.which

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• 4An idea often occurs to me __________ I am in trouble, I can turn to the immigration office.

  A.if

  B.that

  C.which

  D.that when

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• 5Tomorrow is Tom's birthday.  Have you got any idea _______ the party is to be held?

  A.what

  B.which

  C.that

  D.where

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• 6News came from the  school office _____  Wang Lin had  been admitted to Beijing University.     

  A.which

  B.what

  C.that

  D.where

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• 7Some researchers believe that there is no doubt____a cure for AIDS will be found.  

  A.which

  B.that

  C.what

  D.whether

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