1. Peter is the tallest boy in my class
2. According to me, Maths is more difficult than English
3. Mary is the most intelligent girl in my group
4. The Nile is the longest river in the world
5. No mountain in the world is higher than Mount Everest
6. That computer works woser than this one
7. Her new house is smaller than her old house.
8. No tower in Chicago is taller than The Sears tower
9 That computer is not as expensive as than this computer
10. I don't drives more carefully than my friend