我不知道你是读几年级的,所以我随便写了一个九年级（grade 9）,如果不是的话,你可以改一下.
I'm Li Qiang,a student of Grade 9.My father and i went to see a movie that is about science fiction last Saturday.On the way to the theatre,we saw a woman fall down from her bike.She got hurt.There was few people around.So we decided to send her to the hospital nearby as soon as we saw the accident.We were proud of what we had done.I felt happy.