1) If we have enough water,  a) we won't be thirsty b) we will be thirsty c) we will thirsty d) we would be thirsty 2) More species will survive a) if we won't protect nature b) if we protects nature c) if we will protect nature d) if we protect nature 3) We will reduce the use of natural resources a) if we recycled old things b) if we would recycle old things c) if we recycle old things d) if we will recycle old things 4) As soon as we destroy the ozone layer,  a) nothing will save us from UV rays b) everything will be saved c) nothing will be saved us from UV rays d) nothing save us from UV rays 5) Until we stop cutting down so many trees, a) we endangers our oxygen supply b) we are endangered our oxygen supply c) we would endanger our oxygen supply d) we will endanger our oxygen supply

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