1) Animals need a natural environment to survive. So, we .............. use pesticides. a) Should b) Shouldn't 2) We ........... plant trees because it protects the animals. a) mustn't b) must 3) We ............ use recycling materials because they are renewable. a) Shouldn't b) Should 4) People ........ cut down all trees. Otherwise, Deforestation will occur. a) mustn't b) must 5) We ........ use public transportation to reduce air pollution. a) Should b) Shouldn't 6) We .......... use too much plastic because it harms the environment. a) Shouldn't b) Should 7) We ......... use electric cars to protect the environment. a) Must b) Mustn't 8) We ....... turn off the lights when we leave the room to save energy. a) Must b) Mustn't 9) We ........ use wind energy to reduce pollution and protect nature. a) Must b) Mustn't 10) Factories ......... use filters to prevent air pollution. a) Must b) Mustn't 11) We ....... ignore planting trees because they help clean the air. a) Should b) Shouldn't 12) We ........ save water to protect our planet. a) Should b) Shouldn't 13) We ....... recycle to reduce waste and protect the environment. a) Mustn't b) Must 14) We .......... throw garbage on the streets because it harms the environment.  a) Should b) Shouldn't 15) We ....... be careful with fire to prevent forest fires. a) Shouldn't b) Should 16) We ....... waste of electricity to protect the environment. a) Mustn't b) Must 17) We ......... use solar energy because it is clean and renewable. a) Shouldn't b) Should 18) We ........ pollute rivers and lakes to keep them clean. a) Mustn't b) Must 19) We ...... use rechargeable batteries to reduce waste. a) Should b) Shouldn't 20) You ...... use own car a lot because it increases air pollution. a) Should b) Shouldn't 21) We .......... waste water because it is a valuable resource. a) Mustn't b) Must 22) We ........ destroy animal habitats because it causes animal extinction. a) Should b) Shouldn't 23) They ....... save on energy to protect the environment. a) Must b) Mustn't 24) You ...... pick up the garbage to keep our environment clean. a) Should b) Shouldn't 25) Mustafa .......... turn on the lights during the day to save energy. a) Should b) Shouldn't 26) We ....... use eco-friendly products to reduce environmental pollution. a) Must b) Mustn't 27) We .......... save water to prevent drought. a) Must b) Mustn't 28) We ........ hunt animals because it causes to extinction. a) Should b) Shouldn't 29) We ......... support deforestation because it harms wildlife and the environment. a) Shouldn't b) Should

Environment

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