Ответ:

степени:

1. What is the most beautiful) city you've been to?

2. This is the most boring) book I've read.

3. Traveling by plane is (faster than traveling by train.

4. Vegetables are (healthier than fast food.

5. A giraffe is (taller than an elephant.

6. Better late than never.

7. Tina is (friendlier than Frank.

8. What Is the worst thing that can happen?

9. I live (farther than my friend does.

10. Adidas is more popular) than Puma