8. Think and complete. We should/shouldn't ... 1. ... waste water and electricity.
2. ... recycle metal cans and glass.
3. ... throw litters in the streets. 7. ... send smoke into the air.
4. ... keep the air clean
8. ... turn off the water and light.
5. ... recycle paper.
6. ... use cars.​

1. We shouldn't waste water and electricity.

2. We should recycle metal cans and glass.

3. We shouldn't throw litters in the streets. 7. We shouldn't send smoke into the air.

4. We should keep the air clean

8. We should turn off the water and light.

5. We should recycle paper.

6. We shouldn't use cars.​

Объяснение:

1)Shouldn't

2)Should

3)Shouldn't

4)Should

5)Should

6)Shouldn't

7)Shouldn't

8)Should