We cannot figure out ________ quite a number of insects, birds, and animals are dying out.     

试卷相关题目

• 1I was advised to arrange for insurance ______ I needed medical treatment.

  A.nevertheless

  B.although

  C.in case

  D.so that

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• 2After three hours' climbing , they reached _____they thought was the place they'd been dreaming of .

  A.what

  B.which

  C.where

  D.that

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• 3_______ we are sure about is the need to prevent children from being spoiled.

  A.What

  B.Which

  C.Whether

  D.That

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• 4_____ he was ill, I was expected to take his place greatly surprised me for I didn't have much working experience.

  A.If

  B.That if

  C.That

  D.If that

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• 5No matter how frequently _____ the works of Beethoven always attract a large number of people.

  A.performing

  B.performed

  C.to be performed

  D.being performed

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• 6Villagers often say our village is no longer ______ it used to be.

  A.what

  B.that

  C.which

  D.how

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• 7It is well known to us all ______ China sent up a manned spaceship to outer space successfully last year.

  A.that

  B.what

  C.which

  D.when

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• 8A warm thought suddenly came to me _____ I might use the pocket money to buy some flowers for my mother's birthday .

  A.if

  B.when

  C.that

  D.which

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• 9______ was most important to her ,she told me ,was her family .

  A.It

  B.This

  C.What

  D.As

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• 10______ it will do us harm or good remains to be seen.

  A.If

  B.Whether

  C.That

  D.Where

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