题目内容：

The poor _______ living in the mountain _______ top is covered with green trees.
A.are;which
B.are;whose
C.is;whose
D.are;of which
请问为什么选B不选D

优质解答

引导定语从句时,关系代词whose,引导定语从句时,既可指人,又可指物,of which只能指物,有时whose可以与of whom和of which互换使用.只不过whose所修饰的名词前不能有定冠词之类的词,而of which所修饰的词前往往有定冠词...