A:l lost my watch tish morning
B: ok. is this your watch?
A: no,it is not. that is my watch.
B:here yuo are
A: and that is my id card
B:ok,what is yuor name?
A:linda
第二篇
A:that is my pen.
B:this?
A:yes,and that is my baseball
B: all right.what is your name
A: mike
B:ok.here is baseball
A:thank