complete the sentences with Should/Shouldn't do to save the Earth
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I. Complete the sentences with Should/Shouldn't do to save the Earth.

1. We **shouldn't** burn trees.
2. We **should** walk or ride a bike to school.
3. We **shouldn't** leave the tap running when we're brushing the teeth.
4. We **should** turn off the lights and the computer when we leave the room.
5. We **should** recycle waste paper, bottles and cans.
6. We **shouldn't** use aerosols.
7. We **should** use low energy light bulbs.
8. We **shouldn't** drop litter in the streets.