16、I went shopping with my wife. We have a lot of things to　　

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buy them. We drove to the center of the city and stopped 　 

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our car in front of the shop. An hour late, we came back    

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to the car. But it was strange that we couldn’t open       

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the door. So we asked policeman for help. He was            

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glad to help us. A few minute later, he got the door open.  

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Just then a man came up and shouted angrily. “How are      

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you doing with my car?” We were surprising and went to      

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see the number of the car. What you think we did then?      

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We had to speak sorry to the man again and again.           

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