It looks like you have a fill-in-the-blank exercise. Here are some suggestions for the blanks:

1. We bought that house last year. It is **beautiful**.
2. This car belongs to Mr. and Mrs. Smith. It is **theirs**.
3. I think I saw John drop this pen. I think it is **his**.
4. This book is **mine**. It has my name on it.
5. My brother and I made that chair. It’s **ours**.
6. Excuse me. This phone is **yours**. You forgot to take it with you.
7. Her sister drew the picture. It's **hers**.
8. The little boy shouted, “Give the ball to me! It's **mine**!”
9. That’s **what** we bought it last night at the department store.
10. The bicycles were **rented** so they rode them home after school.
11. Are you sure this book belongs to your mother? Yes, it’s **hers**.
12. This is **yours** — you ordered the pizza. I ordered the spaghetti.
13. A. Is this Robert’s? B. No, it’s **not**.
14. I think these keys are **mine**. I left them on the table.

Feel free to modify any of the suggestions as needed!