Do you konw 空格 he expects will give us a talk

问题描述:

Do you konw 空格 he expects will give us a talk
空格选什么?是WHO 还是WHOM还是THAT?
为没不是WHOM?或者THAT?这个句子是什么是省略了什么词?

who
把he expects 不看就OK了
Do you know who will give us a talk