. A nature reserve for white-flag dolphins was set up in 1992, _______ boats have been  prohibited from sailing around since then.

试卷相关题目

• 1．The terrible flood swallowed the village ________ the villagers could get away. No one survived it.

  A.after

  B.as

  C.since

  D.before

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• 2The seaside here draws a lot of tourists every summer. Warm sunshine and soft sands make ___________it is.

  A.what

  B.which

  C.how

  D.where

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• 3The problem with being a time waster is _____the online game playing often spills over into the periods of time that should be productive.

  A.what

  B.which

  C.that

  D.whether

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• 4We all know it will be next June ______ we can really have a rest .

  A.when

  B.before

  C.since

  D.until

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• 5After graduation I hunted for jobs here and there, meeting with many setbacks,_______ I obtained a vacant post in a small business.

  A.though

  B.in that

  C.unless

  D.until

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• 6Tom was about to close the window__________his attention was caught by a bird.

  A.when

  B.if

  C.and

  D.till

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• 7_____the girl could rush out of the house, the roof fell upon her.

  A.When

  B.While

  C.Before

  D.As

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• 8Believe it or not, I'm sure that is _____ people call the six sense．

  A.when

  B.what

  C.which

  D.why

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• 9______you look at the ocean from the beach or on the map, remember that what you ______ is only the surface .

  A.The next time; will see

  B.For the next time; are seeing

  C.Next time; are seeing

  D.Next time; will see

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• 10We are taught that a business letter should be written in a formal style ____ in a personal one．

  A.less than

  B.other than

  C.better than

  D.rather than

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