1 Her new house is smaller than her old one 

2 Peter is the tallest student in the class

3 The white dress is cheaper than than the black one

4 According to me, Maths is more difficult than English

5 Mary is the most intelligent in the group

6 The Nile river is the longest in the world

7 No mountain in the world is higher than Mount Everest

8 She is the prettiest girl I have ever met

9The more he works, the more tired he feels

10 That computer works worse than this one 

1.Her new house is smaller than her old house.

2.Peter is the tallest in my class.

3.The white dress is cheaper than the black one.

4.According to me, Maths is harder than English.

5.Mary is the most intelligent in my group.

6.The Nile is the longest river in the world.

7.No mountain in the world is taller than Mount Everest.

8.She is the most pretty girl that I've ever met.

9.The more he works, the more tired he feels.

10.That computer works worse than this one.