Unit 16. Buy It! - Unit 20. Animals » Стр.79 (2)

Write the comparative form of the adjectives. 1. big–bigger; 2. small – smaller; 3. hot – hotter; 4. cold – colder; 5. happy – happier; 6. sad – sadder; 7. long – longer; 8. short – shorter; 9. clean – cleaner; 10. dirty – dirtier; 11. new – newer; 12. old – older; 13. young – younger; 14. nice – nicer; 15. slow – slower; 16. tall – taller.