who_has common sense will do such a thing A,which B,who C,whom D,that 为何选D,求语法解析

问题描述:

who_has common sense will do such a thing A,which B,who C,whom D,that 为何选D,求语法解析

这是定语从句只能用that的情况,先行词为who/which时,只能用that