问题补充：
求有who引导的主语从句例句,越多越好!whom,whose,whoever,whomever也有需要！
答案：
who will give us a talk is unknown at all.
去区别一下whoever引导的
======以下答案可供参考======
供参考答案1:
Who are you ?
Who is that ?
I don know who is your sister .
Helen is a good student who studys all day .
John is a hard- working husband who works day and night .
Whose shoes are this ?
