Помогите пожалуйста!!!!!!!

Ответ:

1. the prettiest. 2. taller. 3. the cleverest/the most clever. 4. the longest. 5. more difficult. 6. the best. 7. more expensive. 8.the most interesting. 9. the tiniest. 10. more modern. 11. higher. 12. the worst.