1, Her new house is smaller than her old one

2, Peter is the tallest ( person) in my class

3, The white dress is cheaper than the black one

4, According to me, Maths is more difficult 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 higher than Mount Everest

8, She is the prettiest girl I've ever met 

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

10, That computer doesn't work better than this one

Hoặc: That computer doesn't work as good as this one

Công thức: so sánh hơn kém: S + be/V + adj/adv + er// more + adj/adv + than + S2

so sánh ngang bằng: S + be/V + as + adj/adv + as + S2

so sánh hơn nhất: S + be + the + most + adj/ adj + est + ( N ) + in/on/of .....