We have a house. It’s our house.
Mark and I have a beautiful house. It’s our house.

You have a dog. It’s your dog.
You and Ann have a big dog. It’s your dog.

They have a fast car. It’s their car.
Jack and Lin have a car. It’s their car.

I have a dog. It’s my dog.
You have a cat. It’s your cat.
He has a hat. It’s his hat.
She has a doll. It’s her doll.
The tree lost leaves. They are its leaves.
We have a car. It’s our car.
They have a house. It’s their house.