Ex3 :

1. Mai is more intelligent than Kien.

2. My brother is stronger than my sister.

3. Life in the city is more exercise than life in the countryside.

4. Doing out homework is more important than read a novel.

5. Ba Be Lake is the largest in Vietnam.

6. Mekong River is the longest in Vietnam.

7. Lan is the best English in my class.

8. Computer studies is Nam's favorite subject.

9. Mrs Thao is our English teacher.

10. Where do you Mr Tan live?

11. Shall is introduce you my best friend, An?

12. Trung like playing soccer.

1.- Mai is more intelligent than Kien

2- My brother is stronger than my sister

3- Life in the city is more exciting than life in the countryside

4- Doing our homework is more important than reading novel

5-Ba Be Lake is the largest lake in Viet Nam

6- Mekong river is the longest  river in Viet Nam 

7-Lan is the best ( student) of English in my class.

8. Computer studies is Nam 's favourite subject

9. Mrs Thao is our teacher of English.

10.Where does Mr. Tan live?

11. Shall I introduce you my best friend, An ?

12. Trung likes playing soccer.

1. There are ....( is)

2. Tomorrow Loan is buys a new camera for her brother 's birthday( will buy)

3.Tom does not never go fishing in the winter( never goes)

4. Student shouldn't  to litter ......(litter)

5. Is your house at the country( in)