Giúp mk vs 1. Many new cars have a much lower fuel _____________. (consume) 2. These _____________ will help to save much energy. (innovate) 3. _____________, she came on time. (ultimate) 4. Teachers will never be _____________by computers in classroom. (replacement) 5. I was impressed by the _____________ with which she handled the crisis. (efficient) 6. Energy can be collected by solar _____________ on cloudy days. A. boards B. panels C. bars D. sheets 7. You should replace ordinary bulbs with _____________ bulbs. A. energy-save B. saving-energy C. energy saved D. energy-saving 8. The teacher suggested that the test _____________ carefully. A. should do B. be done C. did D. do 9. _____________energy is enormous but dangerous to our environment. A. Solar B. Windy C. Water D. Nuclear 10. What can we do to spend less _____________ lighting? A. in B. out C. on D. of 11. It is possible to _____________solar energy for a number of days. A. install B. store C. check D. cover 12. The label tells the consumers how much energy _____________ each model has. A. replacement B. innovation C. efficiency D. production 13. Unless you understand the lesson, I _____________ it again to you. A. would explain B. will explain C. explain D. could explain ….