According to the statistics, listening to loud music at rock concerts hearing loss in some teenagers in the past 2 decades.A．have causedB．causedC．had causedD．has caused 题目和参考答案——青夏教育精英家教网—

题目内容

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

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。

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