So sánh hơn của ADJ/ADV ngắn 
S + be/V + ADJ/ADV + ER + than ……
So sánh hơn của ADJ/ADV dài 
S + be/V + more + ADJ/ADV + than ……

ADJ dài là từ có 2 âm tiết trở lên 
ADJ ngắn là từ có 1 hoặc 2 âm tiết tận cùng là - er, -ow, - y 
- Tận cùng là y → đổi -y thành - i và thêm ER 
- Tận cùng là e → thêm R  
- Phụ + nguyên + phụ âm → ta gấp đôi phụ âm cuối → và thêm ER 

ADJ + ly --> ADV dài

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Bài 4:

1. Nam is taller than Thang.

2. My house is bigger than his house.

3. Mai is younger than her sister.

4. Mr. Ha is fatter than Mr. Tuan.

5. My brother is stronger than me.

6. I am shorter than Hoa.

7. Phuong's room is larger than Lan's room.

8. Ms. Linh is more beautiful than Ms. Huyen.

9. This exercise is more difficult than that exercise.

10. My toys are nicer than your toys.

Bài 5:

1. That exercise is more difficult than this one.

2. The red car is more expensive than the black one.

3. That film is more boring than this one.

4. That river is shorter than this one.

5. Miss Nga is younger than Miss. Lan.

6. Your kitchen is bigger than mine.

7. Her new house is smaller than her old one.

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

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

10. That computer works worse than this one.

`color{orange}{~LeAiFuRuiHuiBao~}`

Bài 4

1.Nam is taller than Thang

2.My house is bigger than his house.

3.Mai is younger than her sister

4.Mr.Ha is fater than Mr.Tuan

5.My brother is stronger than me

6.I shorter than Hoa 

7.Phuong's room is larger than Lan's room

8.Ms.Linh is more beautiful than Ms.Huyen

Công thức so sánh hơn

-adj ngắn

S1+adj+er+than+S2

-adj dài

S1+more+adj+than+S2