They have four children,three of whom live abroad为什么是three of whom 而不是three of them
问题描述：
They have four children,three of whom live abroad
为什么是three of whom 而不是three of them
答
要是用them的话,就得是这样的They have four children and three of whom live abroad
用whom的话是定语从句,修饰children.
明白了吗