1.Tim is older than Sarah(young)
⇒ Sarah is younger than Tim. 
2.Our house is large than yours(small)
⇒ Your house is smaller than Our house. 
3.Bill is not as tall as David(short)
⇒ Bill is shorter than David. 
4.Jack's marks are worse than mine(good)
⇒ My marks are better than Jack's marks.
5.This book is the same price at the one(expensive)
⇒ That book is as expensive as this book. 
6.Your bike is slower than mine(fast)
⇒ My bike is faster than your bike. 
7.Her old house is bigger than her new one
⇒ Her new house is smaller than her old house.
8.No one in my class is taller than Peter
⇒ Peter is the tallest people in my class. 
9.The black dress is more expensive than the white one
⇒ The white dress is cheaper than the black dress. 
10.According to me,English is easier than Maths
⇒ According to me,Maths is more difficult than English.
11.No one in my group is more intelligent than Mary
⇒ Mary is the most intelligent people in my group. 
12.No river in the world is longer than Nile
⇒ The Nile is the longest river in the world. 
13.Mount Everest is the highest mountain in the world
⇒ No mountain in the world is higher than Mount Everest. 
14.This is the first time I have ever met such a pretty girl
⇒ She is the first pretty girl I have met. 

15.He works much.he feel tired 

⇒ The more he work , the more he tired. 

1 . Sarah is younger than Tim

2 . Your house is smaller than ours

3 . Bill is shorter than David

4 . My marks are better than Jack's marks

5 . That book isn't more expensive than this one

6 . My bike is faster than yours

7 . Her new house is smaller than her old one

8 . Peter is the tallest person in my class

9 . The white dress is cheaper than the black one

10 . According to me , Maths is more difficult than English

11 . Mary is the most intelligent girl in my group

12 . The Nile is the longest river in the world

13 . No mountain in the world is higher than Mount Everest

14 . She is the prettiest girl that I've ever met

~Xin hay nhất cho nhóm~