IN or ON

The cat is ________ the box.
IN
ON
in

The dog is ______ the house.
IN
ON
in

The computer is ____ the desk.
IN
ON
on

The princess is ______ the bed.
IN
ON
on

Bart is ______ the car.
IN
ON
in

Pikachu is ______ the tree.
IN
ON
on

Spongebob is ______ the sofa.
IN
ON
on

Bart is ______ the sofa.
IN
ON
on