What do you have?
I have a pencil.
What is it?
It's a crayon.
What is it?
It's a marker.
Do you have a pen?
Yes, I do./ No, I don't.
What is it?
It's a pen.
What do you have?
I have a crayon.
Do you have a marker?
Yes, I do./ No, I don't.
What is it?
It's a pencil.