问题补充:
-- He was so angry at she was doing he walked out and closed the door heavily behind him.
--I am sorry to hear that.
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:句意:他对她正在做的事情太生气了,以致于他走出去重重地关上门。对此深表遗憾。be angry at结某事生气,what引导宾语从句做at的宾语,她正在做的事情;so...that如此……以致于,固定句型,故选.A