Ответ:

2. Сравнительная форма прилагательных:

  1. tall — taller (a)
  2. fat — fatter (c)
  3. careful — more careful (e)
  4. good — better (f)
  5. hard — harder (a)
  6. thin — thinner (c)
  7. hungry — hungrier (d)
  8. far — farther/further (f)
  9. difficult — more difficult (e)
  10. nice — nicer (b)