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Where is air pollution come from?和Where does air pollution c

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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？
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.
Where is air pollution come from?和Where does air pollution c air where come pollution does from 连词成句 Tom is the tallest b where does air polliution come from? air pollution Air pollution is more serious than water pollution.的意思? Indoor & Outdoor Air Pollution air Pollution什么意思 What is the cause pollution of air? why air pollution is the most serious? What is air pollution?哪些是空气污染 Air pollution is harmful to our health.(同义句转换) Air pollution Air pollution comes from smoke and dust from power stations.