You should not go rafting __________ you know how to swim, and you should always wear a life jacket.

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• 1'_____the election is over,' said Powell,'the time has come for me to step down as secretary of stateand return to private life.' 

  A.Now that

  B.In case

  C.So long as

  D.As far as

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• 2The question came up at the meeting ______ we had enough money to do the  research.

  A.whether

  B.that

  C.if

  D.what

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• 3It' s been years ____ I enjoyed myself so much as last night.     

  A.since

  B.till

  C.before

  D.after

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• 4My parents always remind me to make sure the electricity is turned off while I am having a bath,which would _____ cause danger, leading to a dreadful consequence.    

  A.somehow

  B.meanwhile

  C.otherwise

  D.therefore

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• 5— How long do you think it is ________ he arrived here?    — Only half a year I believe.

  A.when

  B.since

  C.before

  D.that

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• 6The teacher asked Mary _______ she could tell him the general idea of the poem.   

  A.that if

  B.whether

  C.that

  D.how

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• 7No one can ignore the fact that his wife is independent _______ her husband earns all or most of the family income.

  A.now that

  B.in case

  C.even if

  D.only if

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