Exercise 1: Cho dạng đúng của tính từ trong ngoặc 13. This exercise is (easy) of all. 15. He has twice as (many) books as his sister 17. English is not so (difficult) as Chinese. Exercise 2: Hoàn thành các câu sử dụng cấu trúc: "COMPARATIVE + AND + COMPARATIVE": 1. This subject gets (hard) all the time. 2. I'm just getting (confused). 3. It's becoming (difficult) for me to keep up. 4. The textbook just gets (complicated). 5. I spend (much) time on my work. 6. My list of things to do gets (long). 7. My problem are just getting (bad). 8. I feel happy as my happy is coming (close). 9. Eating and traveling in this city is getting (expensive). 10. Your English is OK now, your pronunciation has got (good).