I have been to China for two years.为什么要改成I have been in China for two years?

英语翻译I have never been to any falls outside China have u been to China? I have been to China for two years.为什么要改成I have been in China for two years? I have been to. i have been studying history in china It is the first time I have ever been to China.It is the first time I have been to China.这两句怎么翻译?有什么不同? i have been there 和 i have been to china为什么一个有to一个没有?比如说：i have never been abroad,为什么不说成i have never been to abroad. I have been in china six months等于 （ ）（ ）six months since I came to china I have been to china many times为什么many times前不+for I have been to china many times为什么many times前不+for long time to see.i have been in China one months.哪些语法错误? -___ you _____ China for a ling time -Yes ,I came here three years ago.A.Have ; been toA.Have ; been to B.Have; been in I have been to Beijing with a friend of China 和 a friend from China 哪个对 讲原因.Jane,can you speak chinese?Yes I （ ）china for about 3years.A have been in B have been to C have gone to this is the first time i came to china和this is the first time i have been to china有什么区别? 1. I have been teaching English in China ___since I came to Beijing in 2005___(就画线部分提问) I have been there,have been 是have been in还是have been to的缩写? 英语翻译I have been to Beijing,Xi'an,Dalian,Tianjing,Hangzhou,Jilan.I like then all.I always have a wonderful time when I travel in China.