词汇

从方框内选择适当的词并用其正确形式完成句子。（每词只能选用一次）

1. These ________ from the factory sell very well. 

2. My mother bought some ________ to make me a dress.

3. You must be ________ when cooking with the oven.

4. Keeping away from white __________ can make our country cleaner and more beautiful. 

5. Have you ever collected waste paper or _________ for recycling?

6. Nowadays ____________ problem has been common in international society. 

7. Mum says it is ________ to throw away old newspapers.

8. Free ___________ bags haven’t been provided in supermarkets since June 1, 2008.

9. More and more people begin to use ________ bags in order to save our world.