Vocabulary in Context Complete each sentence with a word or phrase from the box . 1. The television and refrigerator need ___ in order to work 2. We don't have an electric stove . Our stove uses ____ for cooking food 3. If we ____ energy at home , we can save money and help the environment , too . 4. The lights in the house are very ____They don't use much energy 5. Every cell phone has a small ____ inside it 6. We don't want to ___ energy because it's very expensive 7. Oil is one kind of ___ It was formed millions of years ago 8. My family used a lot of energy in the past , but now we're trying to _____ the amount of energy we use at home. Opciones de respuesta: Battery natural gas efficcient conserve electricity fossil fuel waste reduce