This is not my Walkman. It’s _________. Mine is over there.

—_________ model plane is this?
—I think it’s Jim’s. Look, his name is on it.

If you _________ your name on the paper, you can get a magazine.

—Which country is the Great Wall in?
—It’s in __________.

—Please don’t throw paper on the ground.
—_________, I won’t.