IV.
1. There are five people in his family.
2. He is 40 years old.
3. He is a doctor.
4. She is 35 years old.
5. She is a doctor.
6. He is 10 years old.
7. She is 7 years old.
8. They are pupils.
II.
1. His house is near the sea.
2. Yes, it is.
3. There are five rooms in his house.
4. Yes.
5. It is in the living room.
6. He lives with his parents.
7. He plays badminton with his father in his free time.
8. Yes, he does.