I think playing computer games too much is bad for us为什么这里要用

问题描述:

I think playing computer games too much is bad for us为什么这里要用is?
1个回答 分类:英语 2014-09-20

问题解答:

我来补答
  这句句子的主语是playing computer games too much这件事,你可以把它用it代替,所以显然用is.
 
 
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