假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌的作文如下。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或者修改。
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：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1.每处错误及其修改均仅限一词；
2.只允许修改10处，多者(从第11处)不计分。
One day, I was cooking in the kitchen as the telephone rings. I went to answer it immediately. She was my close friend, Lisa. When we were talking on a phone, the fire alarm sounded. I ran back to the kitchen. The room full of smoke and the beef was badly burnt. I quickly turned off the gases, opening all the window, and then went out of the house. In my surprise, two fire engines were outside my house. I was rather worried. I told about the firemen that it was my careless cooking which caused the heavy smoke.