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Let’s review
Let’s review
Water is u_____. We drink water and u_____water to c____ t______ everyday.
In many places, there is not m___ w____.
seful
se
lean hings
uch ater
Save water
Why
We should not w____ w______.
We should r_____ and s_____ it.
aste ater
euse
ave
How
We should not
coal and oil
our energy comes from .
There is not much coal or oil
We should
save energy.
drive so much
on Earth.
Save energy
Most of
because cars use a lot of energy.
Why
How