3.  He wrote an article about __________ _ (environment) education.

2.  Our duty is________ _ (save) the earth.

1. Marie Curie is one of _________ _ (unusual) women in the world.

Please_______ _ all library books by the end of this week.

A. return back                 B. bring back

C. return to                  D. bring up

他们已拆毁了那幢旧建筑。

They have managed to ________  ______ the old building.

―Have you ever heard ____________ Mr. Black,your new teacher?

―Yes，just a little. He's very friendly.
A. from                B. of

C. through               D. out

7.  建一个网站  _____________ 

8.  以……出名   _____________

5.  制作艺术作品______________

6.  上下颠倒   _____________               

3.  拆下     _____________                 .

4.  恢复；归还  _____________

1.  扔掉    _____________                  

2.  好好利用  _____________