How long have you been a m___ of Greener China?
How long have you been a m___ of Greener China?
--- ____ have you been a member of Greener China?
How long has Mr.White been a member of Greener China since h
How often have you been in Greener China?__________ 改错
How long have you been in China?
How long have you been in China
How long have you been for china与How long have you been in c
I have been a member of Greener China for a year.I have writ
How long have you been a teacher
"How long have you been
How long have you been living in China?为什么要用been,living是延续性动
how long have you been in china中为什么要用have呢?