B1 : Do the crosswords .
1. You should r _ _ _ _ _ _ things like paper, jeans, leftover, etc instead of throwing them away.
2. He should t _ _ _ off the faucet while brushing his teeth.
3. Currently there are a lot of e _ _ _ _ _ _ from deforestation such as storm, flood.
4. It is a w_ _ _ _ when you leave the light on in an empty room.
5. If water continues to be wasted, there will be a s _ _ _ _ _ _ _ of it in the future.
2. take
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