（2007湖南﹚Most birds find it safe to sleep in the trees, but ______ they have eggs or young chicks, they don’t use a nest.

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• 1（2007湖南﹚Reality is not the way you wish things to be, nor the way they appear to be, ______ the way they actually are.

  A.as

  B.or

  C.but

  D.and

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• 2（2007湖南﹚ ______ the silence of the pauses, we could hear each other’s breathing and could almost hear our own heartbeats.

  A.In

  B.For

  C.Under

  D.Between

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• 3（2007江西﹚He was told that it would be at least three more months ______ he could recover and return to work.

  A.when

  B.before

  C.since

  D.that

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• 4（2007江西﹚Scientists are convinced ______ the positive effect of laughter ______ physical and mental health.

  A.of; at

  B.by; in

  C.of; on

  D.on; at

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• 5（2007湖北﹚People try to avoid public transportation delays by using their own cars, and this ______ creates further problems.

  A.in short

  B.in case

  C.in doubt

  D.in turn

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• 6（2007四川﹚Some students often listen to music ______ classes to refresh themselves.

  A.between

  B.among

  C.over

  D.during

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• 7（2007四川﹚I’d like to study law at university______my cousin prefers geography.

  A.though

  B.as

  C.while

  D.for

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