If people want to travel,..., they will use flying cars., If people want less light in the room,..., they will press a button and the windows will get darker., Houses will be in the air..., if there is not space on the ground., If we use electricity,..., the power will come from the sun., The house computer will make the temperature perfect..., if people are too hot or cold., If people have a problem,..., their robots will help them.

BC6 First Conditional

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