he is not the man D_he used to be A that B who Cwhich Dwhom 那这道题为啥只选D呢

题目

he is not the man D_he used to be A that B who Cwhich Dwhom 那这道题为啥只选D呢
我知道whom能带宾格但有的人也选了AB呀?

答案

这个题目选项该是.ABD均可.此处是定语从句.从句缺少指人的宾语,三者均符合.这个我很肯定.