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was,wasn't,were,weren't用在什么情况下
题目详情
was,wasn't,were,weren't用在什么情况下
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答案和解析
这个是人称的问题啊,前两个是第一人称单数的肯定和否定(I).后两个是第二人称(you )以及复数的时候使用.
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