英语“来自”的四种句型结构!急一个是肯定句，一个是一般疑问句，一个是否定句，一个要特殊疑问句。我只知道特殊疑问句

I come from China.
Do you come from US?
No, I don't come from US. I come from Canada.
Where do you come from?

好好学习

1.　 I come from china
2.　 Do you come from China?
3.　I don't come from　China.
4.　Where do you come from?