Theboy________playedthepianoonthe

发布时间：2020-07-09 18:58:17

The boy ________ played the piano on the stage yesterday is Mr. Li's son.













A.whom












B.whose











C.which











D.who

网友回答

D解析当先行词为人，引导定语从句又在从句中作主语的关系代词可用who或that．
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