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ngockhoian
2 năm trước
A = ( 45 x 46 + 47 x 48 ) x ( 51 x 52 - 49 x 48 ) x ( 45 x 128 - 90 x 64 ) x ( 1995 x 1996 + 1997 x 1998 )
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Saving energy doesn’t have to be expensive or time-consuming. But what can you do to save energy? There is (1)______ of ways that you can do to help the process of energy conservation. You can save energy by doing things like making sure that the kettle doesn’t (2)______ more water than that you need, always washing a full load in the washing machine rather than a half load or turning down your central heating by 10C – this could cut your (3)______ bill by 10%. Making sure that hot water taps are not left (4)______ and replace washers if your taps drip. (5)______ work you can turn off (6)______ light and your computer if you are not using them. (7)______ to energy-saving light bulbs – these use around a quarter of electricity, and often last eight times (8)______ than an ordinary bulb. Close your curtains at (9)______ to keep the warm air from escaping through the windows. Switching off (10)______ appliances when they are not in use makes a big contribution to energy-saving, too. 1. A. plenty B. lot C. little D. few 2. A. consist B. contain C. compose D. include 3. A. hot B. heat C. heating D. heated 4. A. run B. ran C. running D. flowing 5. A. By B.At C.In D. On 6. A. any B. all C. those D. no 7. A. Change B. Consume C. Buy D. Sell 8. A. higher B. shorter C. less D. more 9. A. morning B. evening C. dusk D. afternoon 10. A. electricity B. electronic C. electric D. electrical Giải thích rõ ràng giúp mk nha mọi người , qua loa = báo cáo

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