Exercise 12. Complete the following sentences with the correct comparative or superlative form of adjectives and adverbs. (Hean thành cầu sử dụng dạng so sánh hơn hooc nhất của tính từ và trạng từ) 1....

1. She is the slimmest of the four girls. 2. Singapore is one of the cleanest countries in the world. 3. You look more tired than you did yesterday. 4. Barbara sings most beautifully in her class. 5. Giraffes are the tallest animals. 6. I revise my lessons more carefully than Mai. 7. Her bike is faster than mine. 8. Do you swim slower than your dad? 9. Who is the quietest person in your team? 10. I spent less on clothes than her.