In fact he had done ______ he could do to help the poor.A.whatB.whichC.asD.all which
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In fact he had done ______ he could do to help the poor.
A.what
B.which
C.as
D.all which
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正确答案:A
解析:本句缺的是宾语,选A组成一个what引导的名词从句充当宾语。 what he could to help the poor=the things that/which he could do to help the poor,即 the things作前面done的宾语,而that或which代替the things作后面could (do)的宾语,do被省略了。D项all后面的定语从句的引导词只能是that。
