According to the statistics, listening to loud music at rock concerts hearing loss in some teenagers in the past 2 decades.
A. have caused
B. caused
C. had caused
D. has caused
网友回答
A. have caused
B. caused
C. had caused
(答案→)D. has caused
解析：本题考查主谓一致。句意：根据调查，在摇滚音乐会听大音量的音乐，在过去二十年来已经引起了一些年轻人的听力损失。结合语境可知本句描述的是到现在已经完成的动作，故用现象完成时态。本句主语为名词，表示抽象含义，不可数句子的谓语动词用单数形式,故选D。