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5. The book is very interesting. I saw it on the shelf yesterday. → The book that I saw on the shelf yesterday is very interesting. 6. The children often go swimming on Sundays. They have much free time then. → The children often go swimming on Sundays when they have much free time. 7. They are looking for the man and his dog. They have lost their way in the forest. → They're looking for the man and his dog who have lost their way in the forest. 8. The tree has lovely flowers. The tree stands near the gate of my house. → The tree that stands near the gate of my house has lovely flowers. 9. David works for a company. The company makes machines. → The company that David works for makes machines. 10. The students will be awarded the present. Their reports are very valuable. → The students whose reports are very valuable will be awarded the present. 11. The book was about a lovely story. I was reading it yesterday. → The book that I was reading yesterday was about a lovely story. 12. The hotel was very nice. We stayed there last summer. → The hotel where we stayed last summer was very nice. 13. Someone is phoning you. He looked for you three hours ago. → The person who is phoning you looked for you three hours ago. 14. The man works for my father's company. His daughter is fond of dancing. → The man who works for my father's company has a daughter who is fond of dancing. 15. We love Sundays. We don't have to go to school on that day. → We love Sundays because we don't have to go to school on that day. 16. The gate has been repaired. It was ruined by the children. → The gate that was ruined by the children has been repaired. 17. The umbrella belongs to Linh. It was found in the garden. → The umbrella that belongs to Linh was found in the garden. 18. My mother is a doctor. Her wish is to help patients in remote areas. → My mother, whose wish is to help patients in remote areas, is a doctor. 19. I am talking to Russ. He has agreed to support me in my work. → I am talking to Russ, who has agreed to support me in my work. 20. We need to meet those students. Their exam results are not good. → We need to meet those students whose exam results are not good. 21. I will show you the place. I often go there on weekends. → I will show you the place where I often go on weekends. 22. John is one of my friends. He is very clever. → John, who is very clever, is one of my friends. 23. That woman over there is a singer. I can't remember her name. → That woman over there, whose name I can't remember, is a singer. 24. You can buy these things at Dong Xuan market. The market is in the center of the city. → You can buy these things at Dong Xuan market, which is in the center of the city. 25. I went to see a dentist. He filled three of my decayed teeth. → I went to see a dentist who filled three of my decayed teeth. 26. We had a good time at the party. There were a lot of friends there. → We had a good time at the party where there were a lot of friends. 27. Nam is going to study overseas. He got excellent marks in the last examination. → Nam, who got excellent marks in the last examination, is going to study overseas. 28. I saw the men and the cattle. They went to the field. → I saw the men and the cattle who went to the field.