Đề kiểm tra giữa học kì 2 môn Tiếng Anh 9 có đáp án (Mới nhất)_ đề 19
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In many countries nowadays, electricity, gas and water are necessities, companies which produce household goods realize that consumers want products that will not only work effectively, (36)_____________save money. In North America, household lighting accounts for 10% to 15% of the electricity bill. However, this amount can be (37)___________by replacing an ordinary 100-watt light bulb with an energy-saving bulb. Consumers can save 21 per bulb. In Europe, there is a labeling scheme for refrigerators, freezers and washing machines, the labels tell the consumers (38)_________ energy efficiency each model has. (39)___________ with other appliances in the same category. The final result is that these innovations will save money as well as conserve the Earth’s (40)___________.
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