If you ... (press) this button, the game ... (start)., If you ... (press) this button, the game ... (stop)., If I ... (not practice) the piano every evening, I ... (forget) how to play. , If we ... (take) the dog for a walk, it ... (run) around the house., If you ... (heat) ice, it ... (melt)., When I ... (miss) the 8 o'clock train, I ... (be) late for work., When I ... (be) late for work, my boss ... (get) angry., When people ... (not eat), they ... (be) hungry..

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