I come from Changsha,which belongs to Hunan Province.” belong to这个短语用在这里是错误的表达.为什么是错误的呀?

I come from Changsha,which belongs to Hunan Province.” belong to这个短语用在这里是错误的表达.为什么是错误的呀? I want to work in changsha,hunan province,of where I come from这句话语法对吗?我没有财富值了,抱歉,但是比较着急,请各位帮帮忙 I come from I come from Greece I come from thailand My name is ZhangShiYu, this year twelve years old, from changsha, now I am studying at yuying eleme I am Cathy Brown．I am now working for the Sunshine Travel Service(旅行社) in Changsha.I have just come back from Taiwan,the biggest island of China.It is in the Pacific Ocean(太平洋)to the east of Fujian．Last week I took a group of The exhibition hall,____many times,become the second largest in the word and could hold 100000 people at time. A.added to B.adding to C.added D.adding I am sorry that I can not meet you at the airport .I ____ Changsha by the time you come back from I come home from school I juct come back from I just come back from Where I Come From 歌词 --- ---You come from?I From shanghai i have been in changsha now. if you come to changsha,please call me的同义转换if you come to changsha,please call me.=if you come to changsha,please_________.=if you come to changsha,please_________.快, i am from 和 i come from 为什么i come from 没有助动词呀? that's really different from here in Changsha怎么翻译 I am/come from 还是I was/came from?