下面六幅图记载的是Peter上周星期五早上在上学路上经历的事情.请根据图示写一篇内容生动连贯的英语短文.字数在100-120之间.参考词汇：uncover（揭开）passer-by（过路人）由于图片无法上传,图一：Peter在上学的路上看到一个井盖开了没有盖.图二：于是他走过去把井盖盖上了.图三：可是他还没有走几步,听到井盖下喊救命Help~图四：于是他又回去把井盖打开看到一个人,通过那人的叙述知道他是位过路人,不小心掉了下去,还没等他爬上来,井盖就被盖上了.图五：Peter把那个人救了上来.图六：Peter又重新把那儿井盖盖上了.

On the morning of last Friday, Peter went to school as usual. He was walking along the road when he saw a well uncovered. He thought it was dangerous for passers-by, so he decided to cover the well. The cover was so heavy that he took great trouble to remove it. At last he managed to cover the well. Hardly had he turned his back and gone when he heard a cry for “Help” coming from the well. So he turned back and moved the cover away. To his surprise, a worker was inside the well. Peter tried his best to pull the worker out of the well. After that Peter covered the well again properly.