定语从句of whom后作friends的定语从句那它在从句中作主语还是宾语？怎么还原从句？还原：
I have many friends，
and some of them are businessmen.或者：
I have many friends.
Some of my friends are businessmen.求采纳如果把of去掉是什么意思呢？不能去掉of,这个of其实是把some of 里的of提前去了。去掉of句子就不完整了 。给我个满意吧三个都不错但是还是选你吧 你先回答的