——（）have you been in China?——Since last Wednesday

——（）have you been in China?——Since last Wednesday how　long　have you been in China?——Since last Wednesday 啥意思 How long have you been in Sydney?Since last Wednesday .I ___ How long have you been like this?——Every day since （ ）mouth. --how long have you been here in sydney?--____last wednesday how have you been since l saw you last I have been in CZ since last year.这话对么?been in后可加since吗 What have you been doing since we last met? You have been timed out since your last try! I have been in china six months等于 （ ）（ ）six months since I c —How long have you had the bike?—Since last week什么时态 How long have you been in China?