. A. energy B. appliance C. pesticide D. minimize
2. A. cover B. pollute C. reduce D. provide
3. A. prevent B. install C. suggest D. solar
4. A. pollution B. dynamite C. production D. protection
5. A. change B. charity C. chopstick D. character
6. A. depend B. poet C. equal D. region
7. A. think B. thick C. this D. thanks
8. A. shoulder B. should C. could D. would