C3:Cho biết ưu điểm , nhược điểm của phương pháp gieo trồng bằng hạt và bằng cây con ?

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III. Combine the following pairs or groups of sentences using relative pronouns. LƯỢT BỎ ĐẠI TỪ QUAN HỆ KHI CÓ THỂ 1. Have you found the keys? You have lost them. __________________________________________________________ 2. I like the dress. Trang is wearing it. ______________________________________________________________ 3. the fish is really delicious, we had it for dinner. _____________________________________________________________ 4. We stay at the hotel. Peter recommended it. ______________________________________________________________ 5. The church is 200 years old. Our class visited it. 6. The film was interesting. I watch it on TV last night. _______________________________________________________________ 7. The flat was very old. My family used to live in it. _____________________________________________________________- 8. The birthday party was too noisy. We went to it. ________________________________________________________________ 9. Who was that boy? You were with him this morning. _________________________________________________________________ 10. I don’t like the tie. John was wearing it. ________________________________________________________________ 11. The train was full of passengers and goods. We traveled on it. _____________________________________________________________________ 12. Her many friends gave her encouragement. I like to be considered among them. _________________________________________________________________ 13. Her father died last year. She looked after him for over twenty years. ____________________ _____________________________________________ 14. The bed has no mattress. I sleep on this bed. ___________________ _______________________________________________ 15. There wasn't any directory in the telephone box. I was phoning from this box.