Question

he told us all that he had done

He told us ____he had done.
A all that B what all C all what D all which
正确答案是`C.为什么是C?ABD错在哪里?

Answer 1

He told us ____he had done.
答案是A
He是主语
told 谓语
us间接宾语
all 直接宾语,（先行词）
that关系代词,引导定语从句.（当先行词是不定代词时,只能用that)
(另外：all that=what）