Listening to loud music at rock concerts ____ caused hearing loss in some teenagers.A.isB.areC.hasD

题目简介

Listening to loud music at rock concerts ____ caused hearing loss in some teenagers.A.isB.areC.hasD

题目详情

Listening to loud music at rock concerts ____ caused hearing loss in some teenagers.
A.isB.areC.hasD.have
题型:单选题难度:中档来源:不详

答案

C
在摇滚音乐会听大声音乐在一些青少年中已经引起了听力的损伤。动名词作主语谓语动词用单数,已经引起,应为完成时。

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