Whose house is it?
It's her toy house.
Whose rulers are these? (their)
They are their rulers.
Whose car it this?
It's their car.
Whose kites are these?
They are their kites.
Whose balls are these?
They are their balls.
Whose mouse is this? (his)
It's his mouse.
Whose computer is this?
It's her computer.
Whose balloons are these?
They are his balloons.
Whose keyboard is this?
It's her keyboard.
Whose radio is this?
It's his radio.
Whose helicopter is this?
It's her helicopter.
