_____ we don't reduce pollution, animal populations will continue to decrease., If, In case, Unless, Provided that, Air pollution will continue _____ we ban cars., If, In case, Unless, Provided that, _____ I were the mayor, I'd ban plastic bags and bottles., If, In case, Unless, Provided that, _____ it rains, we should give volunteers raincoats., If, In case, Unless, Provided that, _____ we have enough volunteers, our campaigns will be successful., If, In case, Unless, Provided that, Some people don't have _____ in real life as on social media, As many friends , So many friends as, Less friends than, More friends than, _____ our publicity is, _____ it is to get support, The better/ the easier, The better/ the easy, The good/ the easy , Better/ easier, Little John is becoming _____ active, Much and much, The most, The more, More and more, _____ people stop cutting down trees, the amount of wildlife will increase., If, In case, Unless, Provided that, Animals will continue to lose their habitats _____ we reduce deforestation., If, In case, Unless, Provided that.

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