— 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：什么使你的皮肤看起来如此糟糕呢？可知是对主语进行提问。答语为：长时间暴露于阳光下使我的皮肤看起来如此糟糕。Be exposed to 暴露于，所以用动名词做主语，省略了重复的部分。选C。