There, Their, and They're

___________ is a gas station on the corner.

I left my backpack over ________ by the door.

When I arrived at school, many of my friends were already _____________.

_________ going to do homework after school.

Pete and Jenny are on __________ way here.

I can't wait to see _________ new puppy!

I'm not sure if __________ planning on going to the park with us.