-- What made your skin look so terrible? to the sunlight for a long time. A. Because it

问题补充：

-- 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

答案：

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。