The toy duck is (on / under / in front of) the bookcase.
on
Where is the teddy bear?
on the chair
Where is the watch?
under the desk
The ball is (on / under / between) two chairs..
under
The box is (in front of / behind / between) the chair and the desk.
between
Where is the pencil?
in the box
The bat is (on / behind / next to) the table.
next to
The bookcase is (in front of / behind / between) the desk.
behind
The hat is (on / in / under) the desk.
on