Listening to loud music at rock concerts______caused hearing loss in some teenagers.

admin2015-01-08  27

问题 Listening to loud music at rock concerts______caused hearing loss in some teenagers.

选项 A、is
B、are
C、has
D、have

答案C

解析 Listening to…是动名词短语作主语,故谓语动词用单数,根据caused可知用现在完成时的单数形式。
转载请注明原文地址:https://kaotiyun.com/show/WJgc777K
0

最新回复(0)