According to the statistics, listening to loud music at rock concerts hearing lo

According to the statistics, listening toloud music at rock concerts ______ hearing loss in some teenagers in the past 2decades.

A. havecaused        B.caused         C. had caused          D. has caused

试题答案

【答案】

D

【解析】本题考查主谓一致。根据动名词短语作主语, 句子的谓语动词用单数形式,  根据主语与caused的主动关系。