What's this?
It's a door.
What's this?
It's a chair.
What's this?
It's a wall.
What's this?
It's a crayon.
What's this?
It's a bookcase.
What's this?
It's a board.
What's this?
It's a floor.
What's this?
It's a clock.
What's this?
It's a window.
What's this?
It's a cupboard.