I have been there.这句句子对吗?为什么?

I have been there.这句句子对吗?为什么? There used to have trees in my hometown?这句话对吗?这句句子里的have用的对吗 I have been in Britain Three months now这句句子正确吗? There is sheep on the farm 这句句子对吗 英语翻译It was the best place I have ever been to.这句句子没语法错误吧?刚学过 If I had been there ,I would have felt extremly happy 这句话对吗, I have been there 英语语法问题,这句句子对吗? 看看这句句子语法对吗? Many countries have the same eating habits这句句子对吗 How long have you been away there这句话对吗 我这句句子写得对吗?I will attend the meeting at Shanghai office from