there is nothing ___ I want to say.A.which B.what C.that 选哪个?为什么?是什么从句?

问题描述:

there is nothing ___ I want to say.A.which B.what C.that 选哪个?为什么?是什么从句?

C
定语从句 something anything nothing everything 等不定代词作先行词时,关系代词只能是that,不能用which what不引导定语从句