W：There are many things in the lost and found box. Look at the watch.
M：No, it isn't.
W：What about the English book?
M：It's Jenny's.
W：Is the basketball Peter's?
M：Yes, it is.
W：Whose tapes are these?
M：They're Lingling's.
W：Please tell them to put their things away.
M：OK. Thanks.
