Bài I: Nổi hai câu riêng là thành 1 cấu sử dụng mệnh đề quan hệ quan hệ 1. The house has been built in the forest. It doesn't have electricity. 2. Do you know the man? He is coming towards us. 3. I sent her some postcards. They were not so expensive. 4. I come from a city. The city is located by the sea. 5. The salad was so delicious. I had it for lunch. 6. He worked for a man. She used to be an engineer. 7. They caught a thief. He stole 20.000 from the bank. 8. I wrote an email to my brother. He lives in Italy. 9. Bella liked the dancer. He was very friendly. 10. We broke a car. It belonged to my uncle. 11. She broke the glass. This glass is nice. 12. Nam loves cats. Cats are very lovely. 13. He lives in a city. It is in the north of Vietnam. 14. Do you know the man? He is looking at me. 15. The woman killed 2 dogs. She lives in the jungle.