It is still unclear ______ the little boy got the CD player to work．

试卷相关题目

• 1It will be five years ______ we meet again.

  A.since

  B.after

  C.before

  D.when

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• 2Word came _____ his poem won the first prize.

  A.that

  B.whether

  C.as

  D.because

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• 3What impact is it ________ the worldwide economic crisis of 2009 has on the development of Chin

  A.A.why

  B.how

  C.when

  D.that

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• 4On his way home yesterday , Tom was hit on the head_____he had time to realize what was happening

  A.since

  B.before

  C.when

  D.until

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• 5A cup of water_________you will feel better．

  A.or

  B.but

  C.so

  D.and

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• 6She is such a lovely girl ____ is liked by everybody.

  A.what

  B.as

  C.that

  D.which

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• 7 The UN has warned that,_____ natural systems like forests and wetlands disappear , mankind is losing the services they provide such as protection from extreme weather.

  A.while

  B.once

  C.when

  D.as

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• 8The news _________he was cheated surprised us.

  A.that

  B.what

  C.whether

  D.if

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• 9He is better than _______ I last visited him

  A.when

  B.that

  C.how

  D.which

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• 10They had no sooner arrived at the airport _____ it was time to check in.

  A.when

  B.before

  C.than

  D.though

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