结合上下文,补全对话．Li Lei:Good evening!Mr.Green,where are you ____?M

结合上下文,补全对话．
Li Lei:Good evening!Mr.Green,where are you ____?
Mr.Green:I'm _____ London.
Li:Where ____ you work?
Mr:I work ____ a middle school.I'm a _____.
Li:What do you teach?
Mr:I_____ English.
Li:Do you speak ____
Mr:A little.I go to Chinese class every week.
Li:Do you have any ____?
Mr:Yes ,I do.I have _____ a son and a ______.
Li:Do they ____ _____in China?
Mr:yes,they do .
Li:Are you ____ ____ the same school?
Mr:No,The children _____ in a different school.