Mass deaths of birds were not unheard of, but they normally happened unnoticed at sea or in rural areas away from towns. Many birds are weak and die in winter _______ food is scarce.

试卷相关题目

• 1_______ is known to everybody, the moon travels round the earth.

  A.As

  B.It

  C.When

  D.Where

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• 2Children under sixteen are not permitted to participate in such kind of activities ________ bad for their mental development.   

  A.as is

  B.as are

  C.that are

  D.that they are

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• 3It was a meeting _________importance I did not realize at that time.

  A.that

  B.which

  C.its

  D.whose

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• 4Never will I forget the war and sufferings _________ caused to the people．

  A.it

  B.which

  C.what

  D.as

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• 5At the eve of Christmas, she got nothing but $ 2 _______ to buy her husband a simple present.

  A.with what

  B.which

  C.what

  D.with which

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• 6We've booked a room in the centre of town for the guests _____ they can stay for three days.

  A.when

  B.whom

  C.which

  D.where

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• 7There are cases _____ the word “school”is used as a verb(动词).

  A.that

  B.when

  C.where

  D.which

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• 8He came to a point _______ there was no more road to follow, and before him he could see nothing but a thick forest.

  A.where

  B.what

  C.which

  D.that

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• 9In our class there are 60 students, ________ a quarter wear glasses.

  A.in whom

  B.in them

  C.of them

  D.of whom

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• 10We walked up a mountain to a ridge from ________ we had fantastic views、

  A.that

  B.which

  C.what

  D.where

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