完成下面短文，每空一詞。YesterdayIwenttotheparkforsomeexercise.AsIw...

Yesterday I went to the park for some exercise. As I was (1)        the road, I tripped on something and (2)       down. Just at that moment a taxi stopped behind me. The (3)          got out and came up to me. He asked, How are you feeling? Don’t worry. Let me take you to the (4)          . He quickly helped me to get into his

(5)      and drove to the nearest hospital.