As the sea ice melts sooner each swimmer,polar bears are forced to come ashore earlier and face food shortages _____ they have stored enough fat to last them through the season.

试卷相关题目

• 1---It cost me 30 yuan to get here. ---Well, it was crazy of you to take a taxi ______ you would come by bus as well.

  A.unless

  B.when

  C.if

  D.because

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• 2Robert failed to complete his education ________ he found it hard to focus on his studies.

  A.although

  B.if

  C.because

  D.while

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• 3—I'll call you ______ I arrive in Shenzhen． —Thanks, and good luck．

  A.while

  B.until

  C.as

  D.once

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• 4Mary felt sad over the loss of photos she had shot in Australia, ______ that was a memory she especially treasured.

  A.as

  B.which

  C.when

  D.where

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• 5______ they are twins, they don't look the same at all.

  A.Because

  B.Though

  C.As

  D.Since

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• 6___________ he has limited technical knowledge, the old worker has a lot of experience.

  A.Since

  B.Unless

  C.As

  D.Although

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• 7This college allows students to develop their own interests, to ______　extent they wished．

  A.whoever

  B.whatever

  C.however

  D.whenever

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• 8Have you heard the news______ the Chinese athletes won 165 gold medals at the 15th Asian games?   

  A.whether

  B.what

  C.which

  D.that

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• 9Why not stay at home ______ the road is so slippery after the heavy snow?

  A.in case

  B.as long as

  C.now that

  D.even if

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• 10What I want to know is ______ he likes the gift given by us.

  A.that

  B.if

  C.whether

  D.不填

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