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they are go to school on foot.为什么不对,为什么要用they are going to school on foot.
人气:296 ℃ 时间:2019-09-02 08:30:28
解答
一句话中的“时态”是根据动词的形式而决定.
they go to school .现在时
they are going to school (be动词+现在分词=>进行时)
are go 不能两个动词连着使用.
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