_______ most of the earth's surface is covered by water, fresh water is very rare and precious.

试卷相关题目

• 1I wonder ________ we can solve this hard problem.

  A.what else

  B.how else

  C.that

  D.as if

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• 2Is this the reason _________ at the meeting for his carelessness in his work?

  A.he explained

  B.what explained

  C.how he explained

  D.why he explained

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• 3It wasn't such a good job ______ she had read about in the advertisement.

  A.like

  B.which

  C.as

  D.what

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• 4A man does not know the difficulty of anything _____ he does it personally .

  A.although

  B.if

  C.because

  D.unless

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• 5________ everyone else wouldn't go to the mountain area, he went without a second thought. 　　   

  A.As long as

  B.While

  C.Where

  D.In spite of

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• 6He was sentenced to death ______ what he has stolen from the bank.

  A.that

  B.since

  C.because

  D.because of

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• 7They are determined to work out the task,_______ difficult it is.

  A.however

  B.no matter what

  C.no matter what

  D.whatever

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• 8The most favorite room is the tidy study with a fireplace, _____we can watch TV and enjoy the nice scenery outside.

  A.where

  B.when

  C.that

  D.which

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• 9As the saying goes, practice makes perfect, ______is only by using English as often as possible can you learn English well.   

  A.which

  B.as

  C.that

  D.this

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• 10Scientists say it may be five or ten years _________ it is possible to test this medicine on human patients.

  A.since

  B.before

  C.after

  D.when

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