Решение:
- Have you got a sister?
- Have they got a YouTube channel?
- Has she got a cousin?
- Has he got step-children?
- Have they got a petition?
- Have you got a great-grandparent?
- Has he got good friends?
- Has she got a brother?
Ответ: 1. Have you got, 2. Have they got, 3. Has she got, 4. Has he got, 5. Have they got, 6. Have you got, 7. Has he got, 8. Has she got.