He was so angry at all I was doing he walked out.A. that; thatB. what; thatC. that; what

问题补充：

He was so angry at all I was doing he walked out.

A. that; that

B. what; that

C. that; what

D. which; what

答案：

(答案→)A. that; that

B. what; that

C. that; what

D. which; what

解析：句意；对我做的的所有事是如此的生气，以致他走出去了。第一个that引导的是定语从句，修饰all 第二个是so……that的用法：如此……以致 他