1) Trees are ... to make space for cattle. a) thrown away b) chopped down c) killed off d) cleaned up 2) Wolves have...the brown bear. a) thrown away b) killed off c) died out d) used up 3) Some cities have duck lanes to ... that ducks need protection. a) get the message across b) clean the message up c) throw the message away d) kill the message out 4) It's possible that elephants will ...in the wild. a) cut down b) clean up c) kill off d) die out 5) We need to ... plastic from the oceans. a) break down  b) chop down c) clean up d) throw away 6) A lot of big animals will ... if we don't protect their habitats. a) die out b) kill off c) chop down d) clean up 7) Countries should not be allowed to ... any more forests. a) clean up b) cut down c) die out d) kill off 8) Don't ... that plastic bottle ... ! We can re-use it. a) kill / off b) throw / away c) cut / down d) clean / up 9) You should ... on the amount of processed food you eat. a) die out b) run out c) kill off d) cut down 10) We're ... the message ... about the dangers of litter to wildlife. a) dying / out b) getting / across c) cutting / down d) throwing / away 11) Pesticides are ... too many insects. a) throwing away b) cutting down c) killing off d) cleaning up 12) Are you coming along to help ... the park this afternoon? a) get across b) clean up c) throw away d) chop down 13) Chemicals in our body ... the food we eat so that our bodies can use it. a) clear up b) break down c) run out d) cut down 14) Did you ... all the hot water? There isn't any left! a) clear up b) cut down c) cut off d) use up 15) If we destroy habitats, we will... a lot of species. a) cut down b) clear up c) wipe out d) run out

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