all of them :all of which:all of whom 的区别

题目

all of them :all of which:all of whom 的区别
最好详细点
能不能给些例句

答案

all of them 可以作为主语,指所有的XXX,这个them所指的对象前文中已经提到的,可以指人、事物等等,举个简单的例子：We have ten people in the room; all of them are girls. 其中all of them are girls也可单独成句....