An alien is hiding ... the rock.
behind
The dog is ... the bed.
under
The kitten is sitting ... the box
in
The clock is ... the wall.
on
The ship is ... the bottle.
in
The girl is reading ... the tree.
under
The tiger is ... of the cat.
on the left
Let's relax ... the fireplace.
by
There are a lot of books ... the shelf.
on
The sheep is ... the box.
in
There's a bookshelf ... two beds.
between
A woman is standing ... the sea.
by
The apple is ... the box.
on
There's a plant ... the picture.
under
There are nice flowers ...
on the left