5. A doctor has had to retire through ill health. We know him. 6. Jane has sold the old car. She was given it by her father. 7. I would like to thank to my tutor. I would never have finished the work without her. 8. Dr Oley is our family’s dentist. He is a popular dentist in the city. 9. The child enjoyed the chocolates. Her mother bought them from France. 10. They drank a lot of Coke. It is diet Coke. 11. Their parents are anxious about their children. The children come back late. 12. Mr. Phong hasn’t come yet. He is supposed to be at the meeting. 13. That’s the woman. She lives next to my home. 14. Mr. Lam will buy that house. It belongs to my uncle. 15. Karl Marx is a German philosopher. His theories changed the world’s history. 16. Thank you very much for the present. You sent it to me through the mail on my birthday. 17. Romeo and Juliet were devoted lovers. Their parents hated each other. 18. What is the name of the woman? You talked to her yesterday. 19. Have you found the wallet? You lost it. 20. David’s brother is eighteen. He’s just passed his driving test.