问题
选择题
Listening to loud music at rock concerts caused hearing loss in some teenagers.
A．is
B．are
C．has
D．have
答案
答案：C
题目分析：非谓语动词作主语谓动词为单数故为A或者C,声音太大导致了失鸣是主动关系。故排除Ａ
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Listening to loud music at rock concerts caused hearing loss in some teenagers.
A．is
B．are
C．has
D．have
答案：C
题目分析：非谓语动词作主语谓动词为单数故为A或者C,声音太大导致了失鸣是主动关系。故排除Ａ