1 . This is a poster ________ trees. (     )

A．at

B．off

C．about

2 . 判断下列单词与其汉语意思是(T)否(F)相符。
1. last 下一个 (     )
2. off 离开 (     )
3. zoo 公园 (     )
4. protect 保护 (     )
5. boat 购物 (     )
6. world 世界 (     )

3 . 选词填空。

holiday   up   off     open       on

1. Let’s put ________ these Christmas trees.
2. The study is ________ the second floor.
3. The summer ________ is coming.
4. I take ________ my coat.
5. Don’t ________ your eyes.

4 . It’s a picture ______ the Great Wall. (     )

A．above

B．of

C．off

5 . She wrote a book ____ herself. (       )

A．about

B．off

C．on

6 . This is a book ________ birds. (       )

A．in

B．off

C．about

7 . My friends have a surprise party ________ me. (     )

A．of

B．off

C．for

8 . This present is _______ you. (     )

A．of

B．off

C．for

9 . My brother has a toy boat ________ me. (　　)

A．at

B．for

C．off

10 . What can you do _______ the party? (       )

A．of

B．for

C．off