—It's on the desk.
A. B.C.
D. E.
key know they under think
—It's the desk.
—l don't.
—No, they aren't.
—No, they are books.
—I it's in your grandparents' room.
—It's (under / in) the chair.
—It's in the bookcase.
—They're (on / in) the wall.
—They are in the schoolbag.