If you _____ ice, it _____., heat / melt, heated / melts, heat / melted, heat / melts, If people _____ enough water, they _____ healthy., drink / stay, drank / stay, drinks / stays, drink / stayed, If it _____, the grass _____ wet., rained / gets, rains / got, rains / gets, rain / get, If you _____ a plant, it _____., don't water / die, don't water / dies, didn't water / dies, doesn't water / die, If the sun _____, it _____ hot., shines / was, shine / are, shines / is, shined / is, If you _____ electricity, the lights _____., turns off / goes off, turned off / go off, turn off / went off, turn off / go off, If water _____ 100°C, it _____., reached / boils, reaches / boils, reaches / boiled, reach / boil, If you _____ a jacket in winter, you _____ warm., wear / stay, wears / stays, wore / stay, wear / stayed, If children _____ enough sleep, they _____ tired., doesn't get / feels, don't get / felt, don't get / feel, didn't get / feel, If people _____ the environment, the planet _____ cleaner., protect / becomes, protect / became, protects / become, protected / becomes

CONDITIONAL ZERO

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