Task 4:
1. We shouldn't throw trash at public places.
2. She will go to a pagoda this Sunday.
3. Our team are going to plant some trees.
4. This is the best book in the store.
5. Students must wear uniform to school in Vietnam.
6. What is the most beautiful picture in the gallery.
7. Buses are more comfortable than cars.
8. How often do you come to visit your grandparents?
Task 5:
1. What is the quickest way to the airport?
2. New York is one of the busiest cities in the world.
3. My laptop is more expensive than his laptop.
4. There is a small garden behind my house.
5. We will go to Ba Be lake for 2 days.
6. She is the friendliest student in our class.

NHỚ VOTE 5 SAO NHÉ.THANKS