1) Glaciers are melting a) b) c) 2) public transportation a) b) c) 3) We should .............. a) recycle products b) pollute the environment c) use chemicals 4) We shouldn't ............... a) plant trees b) throw rubbish on the ground c) save forests 5) We should stop global warming. a) b) c) 6) Don't use ......... a) b) c) 7) wind energy a) b) c) 8) We should ............. forests. a) harm b) cut down c) save 9) We should't ............. trees a) plant b) cut down c) protect

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