6. Is the Arctic Ocean is the coldest in the world?
7. Which book is the most interesting?
8. This problem is more difficult than yours.
9. My box isn’t as heavy as yours.
10. These exercises are easier than in the book.
11. Which house is the highest in your street?
12. To fly is quckier than to go by car.
13. Whose child is older than mine?
14. This example is the simplest of all.
15. He isn't so stupid as your brother is.
16. Which country is the most beautiful?
17. In this town the streets are narrower than in mine.
18. Your cat is the fattest I've ever seen.
19. Is August the hottest month of the year?
20. She is the most attentive child in her class.
21. My older (elder) sister is two years older than I.
22. What's the nearest station?