What's this?
It's a bag.
What are these?
They're bags.
What's this?
It's a ruler.
What's this?
It's a wall.
What are these?
They're pencils.
What's this?
It's a door.
What's this?
It's a bookcase.
What are these?
They're rubbers.
What are these?
They're pens.
What's this?
It's a cupboard.
What's this?
It's a pencil case.
What's this?
It's a board.
What are these?
They're crayons.
What's this?
It's a window.
What are these?
They're books.
What's this?
It's a classroom.
What are these?
They're chairs.