1. b
2. c
3. a
4. e
5. d
Ex3
1. Because there’s always a lot of traffic day and night.
2. The streets are narrow but they are cleaner and there isn’t so much traffic.
3. No, there isn't
4. Every house has a backyard and a frontyard.
Ex4
1. finishes
2. Do - eat
3. Are - singing
4. spending
5. has
6. is
7. will go
8. is - doing
is practicing
Ex5
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 a novel.
5. Ho Chi Minh City is bigger than Ha Noi capital.
6. Mount Everest is the highest mountain of the world.
7. Ba Be Lake is the largest lake in Viet Nam.
8. Mekong River is the longest river in Viet Nam.
9. Uluru is the most beautiful mountain of Australia.
10. Lan is the best at English in my class.