8. We place many solar _______ on the roofs so that we can use solar energy to warm water.
A. boards B. turbins C. systems D. panels
9. The future vehicles may run faster, cost cheaper and be more _______.
A. economy B. economical C. economic D. econimically
10. At the moment, scientists _______ to generate electricity from alternative energy sources with the lowest cost. A. are trying B. is trying C. will try D. tries
11. You ______ not use your mobile phone when you are on the road. It’s dangerous.
A. must B. can’t C. shouldn’t D. should
12. _______ fossil fuels are mostly cheap and available, burning them is harmful to the environment.
A. Because B. However C. Although D. So
13. Scotland is famous for its _________ castles, historical sights and amazing scenery.
A. old-fashioned B. powerful C. ancient D. driverless
14. The annual Flower Festival in Da Lat, as _______ name, is always full of extremely beautiful flowers and other special plants.
A. it B. its C. ours D. their
15. People often think Santa Claus and pine trees are the ___________ of Christmas.
A. symbols B. performance C. parade D. decorations
16. Austrialia is _______ unique country with special animals such as: kangaroo, koala and quokka,…
A. a B. X C. the D. an
8. We place many solar _______ on the roofs so that we can use solar energy to warm water.
A. boards B. turbins C. systems D. panels
9. The future vehicles may run faster, cost cheaper and be more _______.
A. economy B. economical C. economic D. econimically
10. At the moment, scientists _______ to generate electricity from alternative energy sources with the lowest cost. A. are trying B. is trying C. will try D. tries
11. You ______ not use your mobile phone when you are on the road. It’s dangerous.
A. must B. can’t C. shouldn’t D. should
12. _______ fossil fuels are mostly cheap and available, burning them is harmful to the environment.
A. Because B. However C. Although D. So
13. Scotland is famous for its _________ castles, historical sights and amazing scenery.
A. old-fashioned B. powerful C. ancient D. driverless
14. The annual Flower Festival in Da Lat, as _______ name, is always full of extremely beautiful flowers and other special plants.
A. it B. its C. ours D. their
15. People often think Santa Claus and pine trees are the ___________ of Christmas.
A. symbols B. performance C. parade D. decorations
16. Austrialia is _______ unique country with special animals such as: kangaroo, koala and quokka,…
A. a B. X C. the D. an
8. We place many solar _______ on the roofs so that we can use solar energy to warm water.
⇒ Đáp án: D. panels
9. The future vehicles may run faster, cost cheaper and be more _______.
⇒ Đáp án: B. economical
10. At the moment, scientists _______ to generate electricity from alternative energy sources with the lowest cost.
⇒ Đáp án: A. are trying
11. You ______ not use your mobile phone when you are on the road. It’s dangerous.
⇒ Đáp án: C. shouldn’t
12. _______ fossil fuels are mostly cheap and available, burning them is harmful to the environment.
⇒ Đáp án: C. Although
13. Scotland is famous for its _________ castles, historical sights and amazing scenery.
⇒ Đáp án: C. ancient
14. The annual Flower Festival in Da Lat, as _______ name, is always full of extremely beautiful flowers and other special plants.
⇒ Đáp án: A. it
15. People often think Santa Claus and pine trees are the ___________ of Christmas.
⇒ Đáp án: A. symbols
16. Austrialia is _______ unique country with special animals such as: kangaroo, koala and quokka,…
⇒ Đáp án: D. an
