how long have you come to china 对还是错

How long have you been in China? How long have you been in China How long have you live in China How( )you come to china?I( )to china ( )air. Why have you come to China? How long have you been for china与How long have you been in c how long do you get to school?--- I take 10 minutes.这两句对还是错? How long have you been a m___ of Greener China? how long have you had to wait How long have you been to department I wish you come to China and have a great I with you come to China and have a great