how long has he ---?since 2004 填been to Beijing 填she

问题描述:

how long has he ---?since 2004 填been to Beijing 填she

很高兴能够在这里回答你的问题,这道题的正确答案应该为:
应该填写 been in Beijing.
跟一段时间,所以不能用has been to ,它是说到过几次