1. 1. better

2. the fastest

3. bigger

4. more difficult

5. more expensive

6. the youngest

7. heavier

8. the most careless

9. more

10. worse

2. 1. My mom is shorter than my dad

   2. Russia is the biggest of countries

   3. Computer is more expensive than headphones

   4. Foxes are the best animals

   5. TV is worse than internet

3. 1. This is the best program on TV!

   2. Paris is more beautiful than London.

   3. Russia is colder than Spain

   4. I eat less than you

   5. My schoolbag is heavier than yours.

   6. Is your dress more exprensive than mine?