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A.whatB.whichC.thatD.since
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【29】A.whatB.whichC.thatD.if
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Twelve is to three ______ four is to one.[1998]A.whatB.asC.thatD.like
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There are many animals, however, ____ never play.A: whatB: whichC: thatD: where
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【C3】A.whatB.to whichC.in thatD.where
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【C7】A.whatB.whichC.thatD.as
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It is not easy to say exactly _____ each part of the brain does.A.whatB.whichC.thatD.w