The children are playing in the park. Lingling is sitting on a swing.“Don’t push me too hard!”“Look at me, everyone!”An old man is sitting on a bench. Her dog is looking at the children.Mingming is throwing stones at the dog. The dog is very angry. It is barking.“Don’t throw stones at the dog, Mingming!”Mingming is not listening.“silly dog.”The dog’s chain is broken. It is running to Mingming.Mingming is climbing up the slide.Help!Help!The dog is biting Mingming’s foot. He is crying. The old man is calling his dog.Rover, come here!