Across
- 2. Please put the rubbish into the rubbish ___
- 3. A ____ of paper can be made from trees.
- 5. You can put flowers in it.
- 7. I can make this beautiful piece of ____ into a nice dress.
- 11. ____ is not biodegradable. We can throw it everywhere.
- 13. to use again
Down
- 1. You put a letter in a _____.
- 4. Cola is inside a _____
- 6. We can s____ several envelopes together to make a paper file文件夹.
- 8. We use a tow ____ to pull heavy thing out.
- 9. You can erase the wrong answer with it.
- 10. A plastic bottle can also be a pen _____.
- 12. We can't just write on one s_____ of the papaer and throw it away.