Whose books are they?
They're Mary's.
Whose ball is it?
It's Nick's.
Whose cat is it?
It's Alice's.
Whose dog is it?
It's Dan's.
Whose bag is it?
It's Anna's.
Whose guitar is it?
It's Bill's.
Whose presents are they?
They're Peter's.
Whose paints are they?
They're Lucy's.
Whose kite is it?
It's Emma's.
Whose watch is it?
It's Tom's.
Whose toys are they?
They're Dave's.
Whose phone is it?
It's Simon's.