—What do you think made the girl so depressed？ — with her boyfriendA. As she broke up B.

问题补充：

—What do you think made the girl so depressed？

— with her boyfriend．

A. As she broke up

B. Break up

C. Breaking up

D. Because of breaking up

答案：

A. As she broke up

B. Break up

(答案→)C. Breaking up

D. Because of breaking up

解析：考察动名词做主语的用法。根据上下文可知是对what进行回答。使用动名词短语作句子的主语。AC都只能做原因状语。句意：—你认为是什么让女孩压抑？—与她的男朋友分手。