1. The government should invest in developing____tourism. A. sustainable C. long-lasting B. steady D. constant 2. Watch leaky faucets, which can cause a_____increase in the water bill. A. significantly B. signified C. significant D. significance 3. Humans have destroyed numerous animal and plant____due to resource consumption. A. environments B. resources C. ecosystems D. habitats 4. Even unused electronics can suck up energy so if you___rarely-used items, you can reduce energy consumption and your electric bill. A. will unplug B. unplug C. can unplug D. unplugged 5. My teacher said that recycling was a classic way to help the environment, but not many people____exactly which items should be recycled. A. had known B. know C. knew D.knowing 6. Glass containers can be used ____storing food or other items. A. for B. to C. of D. into 7. ______can not only educate the public on conservation but also bring economic benefits to the locals. A. Ecology B. Ecotourism C. Preservation D. Relaxation 8. Buying food that is sourced locally will help eliminate or reduce transportation_____. A. degradations B. impacts C. powers D. chemicals 9. I am not sure which point of view you are taking on this problem. A. I am not sure what your viewpoint on this problem is. B. I am sure you have no point of view on this problem. C. I am not sure whether you have any point of view on this problem. D. If you have any point of view on this problem, please make me be sure. 10. Most of the suggestions which they proposed at the meeting not practical. A. Most of the people attending the meeting proposed no practical suggestions. B. Very few suggestions that were proposed at meetings were practical. C. No practical suggestions were proposed at the meeting. D. Most of the suggestions proposed at the meeting were not practical. A.