Question

【题目】Listening to loud music at rock concerts caused hearing loss in some teenagers. (2010 .湖南）

is

B. are

C. has

D. have

Answer 1

【答案】C

【解析】 动名词短语作主语时，句子的谓语动词用单数形式，由此排除B、D两项；主语与caused是主谓关系，排除A项。