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【语法练习Programsaimedathelpingusyoungpeopletraintobeskilledworkershaveneverlivedupto()promise.A.theirB.
题目内容：
语法练习
Programs aimed at helping us young people train to be skilled workers have never lived up to ( ) promise.
A.their B.our C.its D.those优质解答
主干是Programs have never lived up to _ promise.
主语是Programs 所以应填 their
Programs aimed at helping us young people train to be skilled workers have never lived up to ( ) promise.
A.their B.our C.its D.those
优质解答
主语是Programs 所以应填 their
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