Whose ice creams are these? (Andy)
They are Andy's ice creams.
Whose toys are these? (Sue)
They are Sue's toys.
Whose flowers are these? (Meg)
They are Meg's flowers.
Whose hat is this? (Meg)
It is Meg's hat.
Whose balls are these?(Tom)
They're Tom's balls.
Whose cakes are these?(Tom)
They are Tom's cakes.
Whose car is this? (Andy)
:It is Andy's car.