I. Use “not as / so … as” to rewrite these sentences : 1. Lipton tea costs 10$. Oolong tea costs 9 $. 2. Vinh is 1.65 meters tall. Hai is 1.7 meters tall. 3. Mary isn’t big. She was very big last year. 4. You are happier than she looks. 5. My bicycle is more expensive than yours. 6. Tom doesn’t try hard. His brother tried hard. 7. The boy doesn’t run fast. He used to run very fast. 8. Mai is the best violinist in her family. 9. The summer isn’t hot. Last summer it was hot. 10. She is active now. She didn’t use to be active. 11. Jimmy is clever. We think he is clever. 12. This boy doesn’t help me much. He can help me much. 13. We don’t export much wood this year. We exported more wood last year. 14. Miss Duyen’s house is the oldest house on this street. 15. The exercises are not difficult. I thought it was very difficult. 16. The students write less papers than they did last year. 17. The paper mill puts out more products than it did two years ago. 18. Miss Huong Tram is the best student in her English class. 19. This boy doesn’t spend much money. He spent much money last month. 20. She doesn’t get up late. She used to get up very late during her holidays