What'as this?
It's a pen.
What's this?
It's a notebook.
Is this a pen?
No, it isn't. It's a pencil.
Is it a bag?
Yes, it is.
What's this?
It's a ruler.
What's this?
It's a desk.
Is it a desk?
No, it isn't. It's a pencil case.
Is it a book?
Yes, it is.
What's this?
It's a rubber./ It's an eraser.