有关all that ,还是all what

问题描述:

有关all that ,还是all what
你曾经解答that's all what i've heard.说是名词性从句所以不用that,但如何解释新概念第二册20课,that's all i'm interested in.这里应该是省略了all 后面的that吧?

你上面第一个句子完全是错的,That's all what I've heard.中,显然all是代词,作了先行词,这是一个定语从句,定语从句怎么可以用what引导呢?这句话正确的应该是that's all that I've heard.代词作先行词只能用that或者...