1M:(Look )What is this?N:It is a picture.
2A:Hello!30906543.B:( Hello)!
A:Who( is)(that B:(This )(is ) Li Hua.
A:Oh,good.This is Wei Fang.(How )(are )( you)?B:I am OK,(thanks ).And you?
A:I am fine,too.B:Is Li Feng( /) at home?
A:Sorry.She is not(in ).I think(she's )at school.
3A:(Where's )my book?( Is)that(my )book?B:( No).I(think )it is his book.