Four Police Cars Outside Our Apartment! (1)

      One evening last week, about one hour after supper, we were busy in our rooms doing reading and our homework. It was quiet and peaceful. Then some sound came up. It was a whistle of some kind.  At first , we did not pay much attention to it. But it kept coming  , once every two or three minutes, quite sharp and annoying. So we called to each other what had happened. I got up to be close to the window  , but it was not from outside. Then I went to the kitchen , it seemed to be coming from there, but it did not. Yingzi thought it came from my room. I immediately became nervous about my computer.  Again, no,  not from my room. Thus we went from one room to another, trying to figure out what was wrong.  Rich, who had fallen asleep, was waken up at this time. I said that maybe something went wrong with the icebox. I was afraid that the electric wire went wrong and a fire might break out. At this , Rich decided to call police. She dialed the phone while we were still hesitating. 

         However, several minutes after Rich hung up, the strange sound disappeared. Almost at the same time, we heard the alarm call of the police car . Is it the police coming? We looked at each other in disbelief.