第1个回答 2012-04-25
How long has he been to Beijing?
很高兴为你解答!
老师祝你学习进步!
望采纳,多谢你的问题!^_^
第2个回答 2012-04-25
how long has he been Beijing?北京前没有介词,表示他之前就就在北京,从现在的以后也会在北京,但是不一定什么时候离开,可能几天,或几年
第3个回答 2012-04-25
How long has he been to Beijing?
这个是错误的, been to 是去过的意思,went to在这里就更是不正确了。
应该是以下句子
How long has he been in Beijing?
去了北京多久?
第4个回答 2012-04-25
How long has he been in Beijing?
希望采纳