1. _________________use energy-saving bulbs? * 1 điểm A. Let's B. Why don't we C. How about D. I think we should 2. A __________________________faucet can waste 500 liters of water a month. * A. drip B. to drip C. dripping D. dripped 3. A(n)_________________ has just checked the pipes in the kitchen. * A. electrician B. carpenter C. consumer D. plumber 4. Let's collect unused clothes for street children. =* A. I suggest that collecting unused clothes for street children. B. I suggest that we should collect unsused clothes for street children. C. I suggest to collect unused clothes for street children. D. I suggest that we should collecting unused clothes for street children. 5. Electricity , gas and water are not luxuries but __________________. * A. need B. necessary C. necessity D. necessities 6. What about __________________ off the lights and TV? * A. turn B. turning C. turned D. to turn 7. Scientists are looking for an_________________way to reduce energy consumption. * A. effective B. luxurious C.necessary D. natural 8. ________________want products that will not only work effectively, but also save money. * A. Plumbers B. Consumers C. Conservationists D. Environmetalists 9. Lighting _____________________15% of the electricity bill. * A. wastes on B. replaces with C. accounts for D. compares with 10. We should replace ordinary bulbs ____________energy-saving bulbs. * A. with B. for C. on D. in