1. Nile River is the longest river in the world.
2. This book is the most interesting of the three books.
3. Ho Chi Minh City is the biggest city in Viet Nam.
4. They are the best students in my class.
5. These houses are the most beautiful in the village.
6. Winter is the coldest season of the year.
7. Airplane is the fastest means of transport.
8. He is the most important person in the meeting.
9. I am the happiest man in the world.
10. This is the worst party I've been to.

Tips:
Good ⇒ Better ⇒ Best
Bad ⇒ Worst

1. Nile River is the longest river in the world.
2. This book is the most interesting of the three books.
3. Ho Chi Minh City is the biggest city in Viet Nam.
4. They are the best students in my class.
5. These houses are the most beautiful in the village.
6. Winter is the coldest season of the year.
7. Airplane is the fastest means of transport.
8. He is the most important person in the meeting.
9. I am the happiest man in the world.
10. This is the worst party I've been to.

Cấu trúc : 

The more + S + V, the more + (adj +) S + V

The + so sánh hơn + S + V(tobe), the + so sánh hơn + S + V (tobe)