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 not as pretty as that one.

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 father to school than 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.