`1`. The Amazon River is the longest river in the world

`2.` Everest is the highest mountain in the world

`3.`  My father is the tallest ( person ) in my family

`4`. Ngọc is the best ( student ) in our school

`5`. Bill is the nicest ( person ) of the class

`6`. August is the hottest month of the year

`7`.  This restaurant is the best ( one ) in town

`8.` Peter is the worst singer

`9`. Will Smith is the richest actor

`10`. Susan is the shortest ( person ) of the three

1.The Amazon is the longest river in the world

2My father is the tallest in my family

3Ngoc is the best at our school

4Bill is the nicest of the class

5August is the hottest month of the year

7This restaurant is the best in town

8Peter is the worst singer

9Will Smith is the richest actor

10Susan is the shortest of the class