Answer:

1. happy, happier, happiest

2. large, larger, largest

3. dark, darker, darkest

4. cold, colder, coldest

5. fair, fairer, fairest

6. honest, more honest, most honest

7. respectful, more respectful, most respectful

8. beautiful, more beautiful, most beautiful

9. obedient, more obedient, most obedient

10. industrious, more industrious, most industrious