It is uncertain ______ the experiment is worth doing .

试卷相关题目

• 1 ______ is known to all is that the Diaoyu Islands have belonged to China since ancient times.

  A.As

  B.It

  C.What

  D.That

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• 2It is obvious to the students______they should get well prepared for their future.

  A.as

  B.which

  C.whether

  D.that

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• 3 ______ is surprising to us is that Tom can speak English fluently as though he were a native speaker.

  A.What

  B.That

  C.Which

  D.As

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• 4 _______ is surprising is that there are so many Chinese restaurants in Toronto.  

  A.It

  B.That

  C.Such

  D.What

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• 5______ makes the book so extraordinary is the creative imagination of the writer.

  A.That

  B.What

  C.Who

  D.Which

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• 6_______ breaks the law should be punished .

  A.Those who

  B.Whomever

  C.No matter who

  D.Whoever

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• 7_______ excited her parents most was that he was admitted to his dream college.

  A.That

  B.What

  C.Which

  D.It

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• 8_______ shocks the audience in the film Back to 1942 is the great suffering the famine（饥荒）brought to Henan people.

  A.Which

  B.What

  C.Who

  D.That

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• 9_______caused the accident is still a complete mystery.

  A.What

  B.That

  C.How

  D.Where

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• 10________ knowledge comes from practice is known to all.

  A.If

  B.What

  C.Where

  D.That

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