1. Your brother is more optimistic than you.

2. Air in the countryside is healthier than it in the city.

3. People in the countryside work harder than those in the city.

4. This paddy field is larger than five stadiums.

5. A cow plough worse than a buffalo.

6. Mai speaks English more fluently than her sister.

7. Summer is hotter than autumn.

*GT: - So sánh hơn adj: S1 + be + more adj/adj-er + than + S2.

- So sánh hơn adv: S1 + V + more adv/adv-er + than + S2.

* Cấu trúc so sánh hơn 

S + be + adj-er/ more adj + than + S2

S + be + adv-er/ more adv+ than + S2

`1.` Your brother is more optimistic than you.
`2.` Air in the countryside is healthier than it in the city.
`3.` People in the countryside work harder than those in the city.
`4.` This paddy field is larger than five stadiums.
`5.` A cow plows worse than a buffalo.
`6.` Mai speaks English more fluently than her sister.
`7.` Summer is hotter than autumn.