问题描述：
-Do you know the tallest man _____ my father is shaking hands with?
-Sure ,he is Li Ming's father .
A.that B.who C.which D.whom
我选的 D,咋错了呢?
-Sure ,he is Li Ming's father .
A.that B.who C.which D.whom
我选的 D,咋错了呢?
问题解答：
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