I come from china.可以说I am from china.为什么这里不加be动词am了?

I come from china.同义句改写 I come from china的同义句? 用 from come China I 组句子 I come from china 改一般疑问句 I come from to China 是什么意思 I come from China.正确,还是I'm come from China 正确,为什么? I come from China .(用 be from改写句子） where are you from的回答i'm from china.对 i come from china. i come from china i后面还加am吗 where are come from I come from China 哪里错了这where are come from I come from China 哪里错了这句话 I come from China和 I am from China意思一样吗 I am Leo come from China.I am Leo from China.哪个正确? Where are you from?如何回答可以用：I come from China/Beijing 区别是回答有 come from ,提问句只有from,那么能用come from 回答吗 you,he and I [are/is/come/am] from china 根据大答句写出问句:1.I come from China. i come from fujian,china.逗号有什么作用 where do you come from?a I come from school.b.I am from china.选哪个? I came from china还是I come from china?I was born in Beijing.I came from china还是应该是:I come from china?是过去,还是现在.为 什 么