i'll offer you ___ i can offer to help you.

问题描述:

i'll offer you ___ i can offer to help you.
A.all which B.ALL
我知道B可以,因为它省略了THAT,但A为何不行呢?which 和THAT 应该都可以啊?

all后面的关系副词必须用that
这个是that的特殊用法.
还有不定代词everything,something等等,都是的.
讲定语从句中,老师应该有讲的吧~