Khoanh tròn đáp án đúng. Nowadays, life is totally different (1) ______ 30 years ago. In the past, there weren’t as many people (2) ______ there are today, so houses were (3) ______spacious than today. Because there weren’t so many cars in the streets, the air was not as (4) ______as it is today. Our grandparents often earned a living by growing plants and raising animals. Life at that time depended a lot on the weather. In the present days, people live (5) ______comfortable and independent than before. Our houses aren’t as large as it (6) ______be but they are all taller and more modern. We don’t grow plants to make more anymore and we don’t raise animals (7) ______. Instead, we work in big factories and tall buildings. There are also more ways of entertainment than before. Today’s life is more interesting and comfortabe (8) ______in the past. 1. a. from b. like c. as d. than 2. a. as b. more c.most d. so 3. a. as b. more c.most d. so 4. a. clean b. fresh c. polluted d. pollution 5. a. as b. more c.most d. so 6. a. have to b. must c. can d. used to 7. a. too b. so c. either d. also 8. a. from b. like c. as d. than