A. Use the correct form of the word given to complete each sentence.
1. plumber
2. dripping
3. advice
4. solar
5. cloudy
6. Consumers
7. replacing
8. products
9. natural
10. heated
11. conserve
12. effectively
13. lighting
14. necessities
15. innovations
16. appliances
17. electrician
18. Household
19. disused
20. alternative
21. maintenance
22. installation
23. inefficient
24. pessimistically
25. need