one for reusing all their old paper.
ve
4. Complete each sentence with one or two words.
Watch again if necessary.
1. At the school they have a box for
2. You need
_and
litres of water to make a sheet
of paper.
3. They also recycle
and
at the
school now.
4. People were wasting water and
the washrooms.
5. They wrote "Every
towels in
thing helps!" on
their posters.
6. In the past, everybody
to switch the
lights off at the end of the day.
7. You need 10,000 litres of water to make a light bulb
shine for
hours.