题目内容：

I was so angry at all__she was saying __ I walked out.
A.which,that
B.what,that
C.that,which
D.that,that

优质解答

应该是D
句子这么分：
I was so angry that I walked out.是 so ...that ...的句型.
I was angry at all that (that 可省略) she was saying.是个that 引导的从句.