`7` The air in the country is fresher than the air in the city

`->` Cấu trúc : S1 + to be + adj_er + than + S2

`8` Life in a small village is more boring than life in the city

`->` Cấu trúc : S1 + to be + more adj + than + S2

`9` Dave's wife earns more money than him

`->` Cấu trúc : more + ADJ/ADV + than

`10` Would you mind closing that window?

`->` Cấu trúc : Would you mind/Do you mind + Ving?

=>
7. The air in the country is fresher than the air in the city.
-> so sánh hơn tính từ ngắn adj-er than
8. Life in a small village is more boring than life in the city.
-> so sánh hơn tính từ dài more adj than
9. Dave's wife earns more money than him.
-> more...than : nhiều....hơn
10. Would you mind closing that window?
-> would you mind Ving : bạn có phiền?