短文写作（满分25分）
下面4幅图片描述的是星期天上午在中山公园里发生的一件事，请根据图片所提供的信息用英语为你校的“英语园地”写一篇短文。
注意：①短文必须包括所有图片的主要内容，短文的内容要连贯、完整。
②参考词汇：货摊stand(n)；抢夺snatch(v)；逮捕arrest(v)
One Sunday morning, there were some people in Zhongshan Park
One Sunday morning, there were some people in Zhongshan Park. At a stand, a woman was buying an ice-cream when a young man behind her snatched her handbag away. Hearing the shouting“stop him”, a few people began to run after him. There was an old man sitting quietly on a bench nearby and as the snatcher was running past him, the old man quickly picked up his umbrella and put it between the snatcher’s legs ,so the young man fell down on the ground hard. Soon two policemen came in a police car and arrested him. At last, the woman thanked the old man, and the people around praised the old man for his cleverness.