Giúp mình với! 21. Many _____ species have been saved thanks to community efforts.,A. dangerous B. endangered C. generous D. natural,22. Air pollution is a _____ problem in many major cities.,A. practical B. global C. endangered D. serious,23. Environmental pollution is becoming an _____serious problem that needs to be taken care of as soon,as possible.,A. increasingly B. increasing C. increase D. increased,24. Awareness of environmental damage from _____bags is growing.,A. simple-use B. single-uses C. single-use D. single-used,25. They announced an analys is of the carbon _____ of leading companies.,A. spaces B. contents C. emissions D. footprints,26. The CCTV cameras are intended to reduce _____ in the area.,A. untidiness B. emptiness C. littering D. dropping,27. She studies mountain gorillas in their natural_____.,A. habitual B. habitat C. living D. place,28. This region is the _____ of many species of wild flowers.,A. home B. house C. household D. homework,29. The restaurant has a _____ menu that includes dishes from all over the world.,A. different B. various C. diverse D. diversity,30. _____ in the area includes deer, bears, and eagles.,A. Wildfire B. Wild life C. Wildly D. Wildlife,31. Their main goal is to promote environmental_____.,A. loss B. problem C. issue D. protection,32. Unfortunately, fertilizers from surrounding farmland has reduced the _____ life.,A. marine B. sea C. water D. lake,33. They were fined for illegally _____ waste into the river.,A. treating B. dumping C. dealing with D. creating,34. The air becomes polluted _____ we release too much carbon dioxide into it.,A. before B. while C. until D. when,35. How long did the villagers have to wait _____ the rescue team arrived?,A. while B. before C. after D. as soon as,36. _____ my family applied the Save Our Energy rules, our monthly use of electricitywent down.,A. Until B. After C. While D. Till,37. You can't camp here _____ you get a permit from the local authorities.,A. until B. when C. after D. as soon as,38. _____ we put dustbins in public places, we saw the difference. There was muchless littering.,A. While B. As soon as C. Till D. Before,TEACHER: LƯƠNG THỊ CHÂU LOAN - 0976955470 12

Question

Accepted Answer

Here are the answers to your questions:

21. B. endangered
22. B. global 
   or D. serious (The two answers both fit, depending on context.)

23. A. increasingly
24. C. single-use
25. C. emissions 
   or D. footprints (The two answers both fit, depending on context.)

26. C. littering
27. B. habitat
28. A. home
29. C. diverse
30. D. Wildlife
31. D. protection
32. A. marine
   or C. water (The two answers both fit, depending on context.)

33. B. dumping
34. D. when
35. A. while
36. B. After
37. A. until
38. D. Before