Viết lại các câu sau sao cho nghĩa không đổi

Mn giúp e với ạ!
Viết lại các câu sau sao cho nghĩa không đổi:
1. Her old house is bigger than her new one 
2. No one in my class is taller than Peter
3. The black dress is more expensive than the white one 
4. According to me, English is easier than Maths
5. No one in my group is more intelligent than Mary 
6. No river in the world is longer than the Nile 
7. Mount Everest is the highest mountain in the world 
8.This í the first time I have ever met such a pretty girl 
9. He works much.He feels tired
10. This computer works better than that one