Based on 4a, ex.3

Fill in:

• down
• on
• away
• down on
• off

1. Turn [ ] the heating and put [ ] warmer clothes instead during the winter.
2. Don't throw [ ] anything without thinking of ways to reuse it.
3. Try to cut [ ] packaging and paper.
4. Switch [ ] lights, computers, televisions, ect. when you're not using them.