1. So sánh ngang bằng.
a. Mary is as tall as her brother.
b. A lemon is not as sweet as an orange.
c. A donkey is not as big as a horse.
d. This dress is as pretty as that one.
e. the weather is not as cold as yesterday.
2. So sánh hơn:
a. A rose is more  beautiful than a weed.
b. A dog is more intelligent than a chicken.
c. Ba is more friendly than Nam.
d.Your house is futher than from school to my house.
e. A horse is stronger than a person.
3. So sánh nhất:
a. The Nile is the longest river in the world.
b. Lan is the tallest student in my class.
c. English coffee is the worst of all.
d. Australia is the smallest continent in the world.
e. That is  the highest mountain in the world.