| A.recycle | B.reuse |
| C.reduce | D.throw away |
| A.Walking to work |
| B.Turn off your phone |
| C.Recycling bottles |
| D.Brushing your teeth |
| A.a kind of color |
| B.protect the environment |
| C.the plants and the land |
| D.the air we breathe |
| A.Throwing away the books you don’t use |
| B.Taking used water to water flowers and grass. |
| C.Turn off the water when you’re brushing your teeth. |
| D.Turing off the lights when you aren’t using.` |
| A.Reuse stuff when you can. |
| B.Enjoy walking in the woods. |
| C.Leave your computer on for long |
| D.Plant trees and enjoy their products. |