Ответ: 1. The grandmother’s house. 2. A leg of the chair. 3.The roof of the house. 4. My brother’s voice. 5. Jason’s voice. 6.Our neighbours’ flat. 7. Those women’s hats. 8. The novel by Dostoevsky. 9. The friend’s computer. 10. The friends’ flat. 11. The father’s car. 12. The teacher’s book. 13. The friend’s phone. 14. The teacher’s dictionary.