Ответ:

1. Степени сравнения прилагательных:

  1. nice - nicer - nicest
  2. short - shorter - shortest
  3. young - younger - youngest
  4. new - newer - newest
  5. old - older - oldest
  6. careful - more careful - most careful
  7. modern - more modern - most modern
  8. popular - more popular - most popular
  9. dangerous - more dangerous - most dangerous
  10. expensive - more expensive - most expensive
  11. little - less - least
  12. bad - worse - worst
  13. good - better - best
  14. much/many - more - most