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Last Sunday, (1) explosion broke in the restaurant near my apartment. I was watching a TV show (2) I heard a loud noise. I rushed out of my room and found there were a number of people (3) (bleed) heavily. What’s worse, the quantity of the victims (4) (be) large, which made the whole street in a mess. Because I (5) (learn) the first aid in my school, I came up to a victim immediately. When I looked at his left arm, I found the skin was seriously (6) (swell) and even the tissue under it could be seen so I called the ambulance and asked a nearby person to accompany with him. But he told me his daughter was hurt by the broken glass and begged me to help her. I treated her with the cloths I put my hands (7) in a store. Luckily, this simple treatment helped her wounds avoid (8) (infect). When the ambulance came, all the (9) (injury) were taken to the hospital. Seeing the ambulance disappear in the distance, I thought it was the knowledge of first aid (10) made a real difference.