What's this?
It's a computer.
What's this?
It's a window.
What's this?
It's a pen.
Is this a pen?
No, it isn't.
What's this?
It's a pencil.
What's this?
It's paper.
What's this?
It's a board.
Is this a paper?
Yes, it is.
What's this?
It's a poster.
What's this?
It's an eraser.
Is this a computer?
Yes, it is.
What's this?
It's a book.
Is this an eraser?
Yes, it is.
What's this?
It's a desk.
Is this a chair?
No, it isn't.
Is this a pen?
Yes, it is.
Is this a desk?
No, it isn't.
What's this?
It's a chair.
Is this a book?
No, it isn't.