Question

【题目】 Volunteering, as a way of building character, is popular among young people in western countries.

A. seeing B. to see C. seen D. being seen

Answer 1

【答案】C

【解析】考查非谓语动词。主语Volunteering与动词see存在被动关系，所以选择过去分词seen，＂seen as a way of building character＂作后置定语。