1) We_________ reuse materials to save natural resources a) should b) shouldn't 2) The people_________ prevent air pollution a) Should b) Shouldn't 3) We ________ eat more vegetables each day a) should b) shouldn't 4) We ________spend so much time on our phone a) should b) shouldn't 5) We _________hunt the animals a) should b) shouldn't 6) We ________ destroy forests a) should b) shouldn't 7) You _______keep the school clean a) should b) shouldn't 8) We _______ harm the environment a) should b) shouldn't 9) We ________ cut down trees a) should b) shouldn't 10) The people _________use eco-friendly products a) should b) shouldn't 11) We _______ unplug the TV when we don't watch it a) should b) shouldn't 12) We _______ use solar energy more a) should b) shouldn't 13) You _______ throw garbage on the street a) should b) shouldn't 14) We ______waste water a) should b) shouldn't 15) You_________recycle batteries, plastic and paper a) should b) shouldn't 16) You_________reduce the use of electricity at home a) should b) shouldn't 17) We ________ plant more trees a) should b) shouldn't 18) We ________ protect the world a) should b) shouldn't 19) We _____________ save the planet a) should b) shouldn't 20) We __________ pour waste into to water source a) should b) shouldn't

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