She was so angry at he was doing she walked out without a word.A. what…thatB. that…what　

问题补充：

She was so angry at he was doing she walked out without a word.

A. what…that

B. that…what

C. that…that

D. what…what

答案：

(答案→)A. what…that

B. that…what

C. that…that

D. what…what

解析：此题重点考查复合句的相关知识，what引导宾语从句，that引导定语从句。