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Protect
the Earth
？
？
？
？
Let’s review.
Water is ...
We drink...and use … to … every day.
In many places, there is …
We should not …
We should … and …
Look and say.
Save water
wash …
cook …
water …
clean …
…
water
We use… to…
Look and say.
not much
So...
reuse
Most of …comes from…
There is not much … or …on Earth.
We should …
We should not …because…
Look and say.