假如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，每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏词符号（∧）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：在错的词下面划一横线，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处起）不计分。
Tina and I had been good friend for years. We often did things together, so one day Tina didn’t talk to me and just sat by herself. I don’t know what was wrong. I thought about what I had done and said recent. Was Tina upset because I had done well in the history test than her? No, she was happy that I did well in school. I decided find out what was the matter. I walked over to there Tina was sitting. “Tina,” I said softly, “Is anything wrong?” He answered sadly, “Yes. My cat died on last night.” I finally knew the reason what she didn’t talk to me and comforted her.