Fill in the missing words.

1. fast, 2. faster, 3. the fastest, 4. large, 5. larger, 6. the largest, 7. comfortable, 8. more comfortable, 9. the most comfortable, 10. funny, 11. funnier, 12. the funniest, 13. old, 14. older, 15. the oldest, 16. hot, 17. hotter, 18. the hottest, 19. small, 20. smaller, 21. the smallest.