---What do you think made the woman so upset？
--- weight.
A. As she put on
B. Put on
C. Putting on
D. Because of putting on
网友回答
A. As she put on
B. Put on
(答案→)C. Putting on
D. Because of putting on
解析：考查省略句：句意：你认为你什么让这个妇女这么难过？--体重增加让她烦恼。而此题是一个省略答语，完整的回答是：Putting on weight made the woman so upset. 此句是用动名词短语作主语。故选C项。