It was raining heavily as I was walking up the hill towards the station。Just as I was crossing the road near the top of the hill,a car came round the corner.Suddenly it skidded on the wet road and turned over.At once I ran to the car to help the driver.A young woman hurried to phone for an ambulance.A policeman arrived and asked me a lot of questions about the accident.Soon the ambulance arrived and rushed him away to hospital.