Ex4: Viết câu tương đương: 
1.I am taller than my sister 
→I am not ... 
2.He is shorter than her. 
→He is not ...
→she is ...
3.Money is less important than health. 
→Money isn’t ...
4.A van is smaller than a bus. 
→ A van isn't ...
5.My flat is smaller than yours. 
→Your flat is ...
6.I can speak English more fluently than you.
→You can't ...
7.No one in my class is taller than Minh.
→Minh is ...
8.This exercise is more difficult than the last one.
→This exercise isn't ...
9.This book is worse than that book.
→That book is ...
10.That is the most difficult exercise I have done. 
→I have never done ...
11.I am shorter than my sister.
→I am not ...
→My sister is ...
12. My brother learns harder than i do
→ I don’t learn ...
Mọi người giúp em với ạ, em cần gấp lắm ạ