_____ is certain is ______ the mystery of Stonehenge has never been fully explained.

试卷相关题目

• 1He was badly hurt last night. That is _________ he didn't come to school. 

  A.because

  B.that

  C.why

  D.what

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• 2He is going to build a team that has a lot of potential and he thinks that is ________ excites him.

  A.that

  B.which

  C.what

  D.as

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• 3—I drove to Zhuhai for the air show last week. —Is that ________ you had a few days off?

  A.why

  B.when

  C.that

  D.where

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• 4The present question is ________ many students consider it impossible ____ is really possible if effort is made.

  A.what; that

  B.that ; that

  C.that; what

  D.what; what

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• 5Faced with difficulties, you should believe your confidence is _______ makes a difference.

  A.what

  B.that

  C.which

  D.whether

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• 6Being determined is a good quality and that's ________ it takes to do anything well.

  A.what

  B.which

  C.where

  D.how

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• 7Water, which seems so simple and common, is ______ makes life possible.

  A.what

  B.that

  C.which

  D.how

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• 8_____ seems strange to all of us is _____ the girl is crazy about football.

  A.It; that

  B.What; that

  C.It; why

  D.What; what

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• 9He did not go by bike with me.That is ______there was something wrong with his bike.

  A.why

  B.how

  C.because

  D.Whether

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• 10The boss believed Tom's reason for being late for work is ______ he had to help his grandma cook.

  A.why

  B.that

  C.where

  D.because he

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