It is recommended that the exploration team take with them an extra set of equipment _____ unexpected emergency occurs.

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• 1—Do you have a minute? I've got something to tell you. —OK, ________ you make it short.

  A.now that

  B.if only

  C.so long as

  D.every time

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• 2This policy encourages companies to introduce new technologies ________ take part in the Internationalcompetition.

  A.as good as

  B.as long as

  C.as soon as

  D.as well as

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• 3Normally, it will be quite a few years _______ an earthquake-stricken area returns to what it used to be. But Wen Chuan in China has created a miracle.     

  A.when

  B.that

  C.before

  D.since

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• 4We'll not attend his party _____ we are invited.

  A.on condition

  B.unless

  C.whenever

  D.as though

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• 5Though the problems were all very hard, Kate kept on working on them ________ she finally solved all of them.   

  A.before

  B.until

  C.when

  D.after

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• 6He stood still in front of the shop window ______ he were thinking something.

  A.as though

  B.even though

  C.as long as

  D.although

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• 7According to the rules of the factory, you can ask for leave ________ you have a doctor's diagnosed note.

  A.now that

  B.on condition that

  C.unless

  D.even though

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• 8We should always bear in mind _________ many accidents ________ from drink-driving.   

  A.which; raise

  B.that; arise

  C.which; arouse

  D.that; rise

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• 9Nobody knows exactly how many years it will be ________ the Chinese football team enters the final stage of the World Cup.

  A.when

  B.before

  C.since

  D.until

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• 10We won't give up _______ we should fail times. 

  A.even if

  B.since

  C.whether

  D.until

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