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nloan095
2 năm trước
Giải phương trình: 2x+1/x-1=2(x-1)/x+1
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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’t dirty, I ________________ so much. A. wouldn’t sneeze B. sneeze C. would sneeze D. to sneeze 5. If the factory continues dumping poison into the lake, all the fish and other aquatic animals ________________. A. died B. to die C. dead D. will die 6. Water pollution is the ________________ in the lake has made the fish die. A. contaminating B. contamination C. contaminated D. contaminate 7. If I were you , I ______________ that car . A. would buy B. buy C. bought D. buying 8. If we recycle more , we ________________ the Earth. A. help B. would help C. will help D. helping 9. We will save thousands of trees if we _______________ paper. A. wouldn’t waste B. don’t waste C.wasted D.didn’t waste 10. Noise pollution can lead to________loss. A. looking B. hearing C. listening D. reading 11. If I______a millionaire now, I_______travel around the world. But in fact, I am very poor and have no money. A. were/ would B. am/ will C. were/ will D. am/ would 12. We should wear_______when you go to concerts or other loud events to reduce the effect of noise pollution. A. earphones B. earrings C. earplugs D. ear drops 13. What is the main_______of visual pollution? - Because there are too many advertising billboards. A. effect B. affect C. result D. cause 14. Ships spill oil in oceans and rivers. This results________the death of many aquatic animals and plants. A. to B. in C. from D. at 15. The acid rain has caused____________to the trees in this area. A. damage B. advantage C. pollutant D. environment 16. Households________waste into the river so it is polluted. A. damage B. lead C. lose D. dump 17. 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 18. Have you come_______solutions to this problem? A. up to B. up with C. to with D. on to 19. If we recycle more , we ________________ the Earth. A. help B. would help C.will help D.helping 20. If we ______________ water carefully, more people will have fresh water. A. will use B. using C. use D. would use

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