-- What made your skin look so terrible?
-- to the sunlight for a long time.
A. Because it was exposed
B. After being exposed
C. Being exposed
D. Exposed
网友回答
A. Because it was exposed
B. After being exposed
(答案→)C. Being exposed
D. Exposed
解析：句意：--什么使你的皮肤这么糟糕？--很长时间暴露于阳光。因为是对what的回答，也就是主语，所以用动名词做主语，因为“暴露于”是be exposed to sth，所以是be动词的动名词，选C。