1 . The boy is _____ of three. (       )

A．tall

B．tallest

C．the tallest

2 . Shanghai is one of the l_________ cities in the world.

3 . That’s the ______ student in your class.

4 . 选词填空，将正确答案的序号填入横线上。

A. search        B. best       C. like        D. falls          E. sweet

1. Children shouldn’t eat too much ______ food.
2. You are the __________ singer in the class.
3. Teachers’ Day _______ on the tenth of September.
4. What’s the weather _______ today?
5. I can ________ for a lot of things on the computer.

5 . Peter is the _________ boy in our class. (        )

A．tall

B．taller

C．tallest

6 . Amy is _______ girl in our class. (     )

A．taller

B．the tallest

C．tallest

7 . Look! That’s the _____ dinosaur in this hall. (       )

A．tall

B．taller

C．tallest

8 . This is ______ giraffe in the zoo. (     )

A．tall

B．taller

C．the tallest

9 . Who is the ______, Amy, Lucy or Mike? (       )

A．taller

B．tall

C．tallest

10 . The Yangtze River (长江) is the ______ river in China. (     )

A．longer

B．longest

C．long