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huutringuyen180601
2 năm trước
một ca nô xuôi dòng từ bến A đến bến B hết 5 giờ và ngược dòng từ bến B về bến A mất 7 giờ. Tính vận tốc thực của ca nô và khoảng cách giữa 2 bến A và B biết vận tốc dòng nước là 3km/h
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1. Mi and Nick like ______________ back Mi’s home village on holiday. A. comes B. come C. came D. coming 2. If the factory ________________ dumping poison into the lake, all the fish and other aquatic animals will die. A. continues B. to continue C. continued D. will continue 3.Water ________________ in the lake has made the fish die. A. pollution B. pollute C. polluted D. polluting 4.If the air wasn’tdirty, I ________________ so much. A. wouldn’t sneeze B. sneeze C. would sneeze D. to sneeze 5. Coal, oil and forests are the most important _________resources A. industrial B. agricultural C. natural D. national 6. Water pollution is the ________________ in the lake has made the fish die. A. contaminating B. contaminate C. contaminated D. contamination 7. The acid rain has caused____________to the trees in this area. A. damage B. advantage C. pollutant D. environment 8. Households________waste into the river so it is polluted. A. damage B. lead C. lose D. dump 9. We have to pay a huge amount of money - three million dong for electricity a month________we turn on the heater all the time. A. because of B. due to C. although D. since 10. Have you come_______solutions to this problem? A. up to B. up with C. to with D. on to

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