1. This is where we live. (house)
This is

2. That wallet belongs to me! (That)
wallet!

3. Do those shoes belong to you? (your)
Are ?

4. That car doesn't belong to them. (car)
That's

5. This is where she sleeps. (bed)
This

6. That isn't what he does. (job)
That

7. Have you seen the dog's blanket? (its)
Where's