问题
选择题
He loves his parents deeply, ________ are very kind to him.
A．both of them
B．both of who
C．whom
D．both of whom
答案
答案：D
定语从句考查题。先行词his parents关系词both of whom在从句中做主语。句意：他深爱他的父母，他们对他也非常好。
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