If you press this button - the machine starts., If you heat water to 100°C - it boils., If it rains - the garden gets wet., If you heat ice - it melts., If you mix red and blue - you get purple., If you eat a lot of chocolate - you won't feel well., You will be late - if you don't leave now., If it rains tomorrow - I will stay at home., They will get a big prize - if they win., If she doesn't pay attention - she won't understand.,

zero & first conditionals

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