高考英语连词练习15

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• 11Allow children the space to voice their opinions, _____ they are different from your own.

  A.until

  B.unless

  C.even if

  D.as though

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• 12She went out angrily _____ I realized what was happening.

  A.while

  B.after

  C.when

  D.before

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• 13— How long do you think it will be _____ the Stock Market returns to normal? — At least one year, I guess.

  A.when

  B.before

  C.until

  D.that

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• 14Most parents encourage their children to take an active part in social events, _____ those events do notinterfere with their studies.

  A.concerning

  B.until

  C.unless

  D.provided

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• 15Scientists say it may be five years _____ it is possible to test this medicine on human patients.

  A.since

  B.until

  C.before

  D.when

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• 16I think I was at school, _____ I was staying with a friend during the vacation when I heard the news.

  A.even so

  B.and then

  C.so that

  D.or else

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• 17My classmates asked me ______ possible to improve their English in half a year.

  A.that it would be

  B.whether it would be

  C.if that would be

  D.whether would it be

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• 18— How long have you ______ this book?— _____ 1994.

  A.had; Since

  B.bought; Since

  C.borrow; In

  D.kept; In

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• 19— So you have met Maria?— Yes, it was last week ______ we attended Jack's party.

  A.where

  B.that

  C.when

  D.why

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• 20Many people believe we will suffer from more environmental disasters _____we change the way we live.

  A.but

  B.although

  C.so

  D.unless

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