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the boy say bye and leave, then he is waitng the train when he get on the train,  he realized he was late, he is running very quickly, when he got to school, the school was closed

The boy was saying goodbye to his parents . Then , he went to bus stop to wait for bus . When he was travelling by bus , he saw his clock . He was surpise because he was late for school . After that , he ran quickly but the school's door is closed