Isentinvitationsto90people,_______

发布时间：2020-07-10 19:33:11

I sent invitations to 90 people, ________ have replied.













A.of whom only 30 of them












B.of whom only 30











C.only 30 of those who











D.only 30 who

网友回答

B解析名词/代词+of+关系代词(which/whom)常引导非限制性定语从句，of whom only 30＝only 30 of whom．
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