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My mouth 用are还是is small.

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/10/06 13:47:10
My mouth 用are还是is small.
I have long ears 还是用 I have two long ears?
is
I have two long ears


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再问: 在什么情况下用is?
再答: 主语是三人称单数, 后加形容词, 名词, 介词短语等表主语的性质, 内容, 处所等时用is (即传说中的系表结构) 如 He is a student Jack is clever Tom is in the classroom
再问: 那are是什么时候用?
再答: 刚才讲的这些情况下, 如果主语是复数, 或者是You, 便用are 如: You are a student They are here. The students(复数名词) are in the classroom.