Better wear special clothing, a helmet and a life jacket, just ______ your raft gets upside down or even sinks.

试卷相关题目

• 1____ the Internet is of great help, I don't think it's a good idea to spend too much time on it.

  A.If

  B.As

  C.Because

  D.While

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• 2His ability has never been in doubt----the question is ________ or not he is prepared to work hard.

  A.that

  B.if

  C.where

  D.whether

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• 3I was about to leave _____ the telephone rang.

  A.after

  B.while

  C.when

  D.before

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• 4Do you have any idea ______ it takes to successfully reach the top of Mount Everest?

  A.whether

  B.how

  C.which

  D.what

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• 5The lawyer seldom wears anything but the suit ________the season

  A.whatever

  B.however

  C.whenever

  D.wherever

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• 6_______ he lives in a rich family, he started from the lowest position as an ordinary worker to make his living.

  A.While

  B.Unless

  C.As

  D.Since

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• 7The income of skilled workers went up. ________, unskilled workers saw their earnings fall.

  A.Moreover

  B.Therefore

  C.Meanwhile

  D.Otherwise

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• 8He is quite strange, for everything he does is opposite to ______ is considered normal behavior.

  A.whether

  B.that

  C.what

  D.which

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• 9—Are you ready for Spain? —Yes, I want the girls to experience that ______ they're young.

  A.before

  B.until

  C.while

  D.since

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• 10It's said that an American often starts a speech with a joke, _______ a Japanese seldom does.

  A.as

  B.when

  C.while

  D.though

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