1. Her new house is smaller than her old one.
2. Peter is the tallest person in my class.
3. The white dress is less expensive than the black one.
4. According to me, Maths is more difficult than English.
5. Mary is the most intelligent person in my group.
6. The Nile is the longest river in the world.
7. No mountain is higher than Mount Everest.
8. She is the prettiest girl I have ever met.
9. The more he works, the more tired he feels.
10. That computer works worse than this one.
11. The bigger the apartment, the higher the rent.
12. The sooner we set off, the sooner we will arrive.
13. The better the joke, the louder the laughter.
14. The fatter she gets, the more tired she feels.
15. The older he gets, the less he wants to travel.
16. The more difficult the games, the more excited the children are.