1. the happiest 2. best 3. cheaper 4. the most delicious 5. more beautiful 6. better 7. the prettiest 8. more famous 9. hotter 10. more expensive 11. cleaner 12. the hardest
2. Are you going to get up late? No, I am not. I am going to get up early. 3. Are they going to surf the Web? No, they aren't. They are going to play a lot of sport. 4. Is he going to hang out with his friends? No, he isn't. He is going to visit his relatives. 5. Is she going to stay at home? No, she isn't. She is going to travel abroad. 6. Are you going to play the whole day? No, I am not. I am going to help my parents about the house.