________ still needs to be discussed．

试卷相关题目

• 1________ more countries can use natural energy in the future remains to be seen．

  A.Whether

  B.This

  C.Who

  D.If

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• 2______ is certain is ______ prevention is more important than treatment .

  A.It;that

  B.What;that

  C.As;what

  D.What;what

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• 3_______ medicine works in a human body is a question _______ not everyone can understand fully.

  A.How; that

  B.That; which

  C.That; which

  D.What; that

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• 4________ was most important to her was her family.

  A.What

  B.Which

  C.As

  D.It

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• 5_______ surprised me most was ________ such a little boy of seven could play the violin so well.

  A.That...what

  B.What...that

  C.That...which

  D.What...which

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• 6________ you did it is not known to all．

  A.Who

  B.What

  C.How

  D.Which

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• 7________ Obama was elected president of the USA is a big success for the blacks in America．

  A.不填

  B.That

  C.What

  D.As

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• 8It has not been decided ________ they will leave for New York．

  A.when

  B.why

  C.that

  D.what

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• 9________ is known to us is that the 2012 Olympic Games will be held in London．

  A.It

  B.What

  C.As

  D.Which

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• 10________ seems like science fiction is not completely unlikely．

  A.It

  B.Which

  C.What

  D.That

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