Where is air pollution come from?和Where does air pollution comes from?的区别?
Where is air pollution come from?和Where does air pollution comes from?的区别?
Where is air pollution come from?和Where does air pollution come from的区别？
Where is air pollution come from?和Where does air pollution come from的区别？
英语人气：466 ℃时间：2020-06-03 11:50:01
优质解答
都是不正确的.come是实意动词,疑问句是要用助动词的,所以不能用is.第二个因为does已经是单三了,就不用comes了.
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