Where do you come from?

Where do you come from? where do you come from where do you come from?where do you come foom? where do you come from句子成分分析, HANS:Where do you come from? where do you come from?这种情况不懂 where do you come from?回答是什么 Where you coming from和where did you come from,还有where do you where did you come from和where do you come from有什么区别? Where do you come from 中的 do 可以换成 are where do you come from?a I come from school.b.I am from chin where are you come from 还是where do you come form?