短文改错(共10小题；每小题1分，满分10分)
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除：把多余的词用斜线(\)划掉。
修改：在错的词下画一横线，并在该词下面写出修改后的词。
注意：1. 每处错误及其修改仅限一词；
2. 只允许修改10处，多者(从第11处起)不计分。
Yesterday I went shopping with my wife. We have a lot of things to buy them. We drove to the center of the city and stopped their car in front of the shop. An hour late, we came back to the car. But it is strange that we couldn't open the door. So we asked policeman for help. He was glad to help us. A few minute later, he got the door open. Just then a man came up and shouted angrily. "How are you doing with my car?" We were surprising and went to see the number of the car. What do you think we did then? We had to speak sorry to the man again and again.