Решение:
- What's his phone number?
- Her favourite subject is English.
- This is my little brother. Look at him.
- The children like their school.
- Is it your pencil case?
- It's my room.
- We are a happy family.
- These are my classmates. I study with them.
- Where are they now?
- This is my pet. Its name is Fluffy.
Ответ: 1. his, 2. Her, 3. him, 4. their, 5. your, 6. It's, 7. We, 8. them, 9. they, 10. Its.