题目内容：

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。

I have learned English for many year, but I don’t have a really chance to speak before foreigners. Last Monday, I go downtown to buy some flowers for my friend Mary, whom was seriously ill. I was going to the hospital to see him. In the shop a foreigner and the boss was having a conversation, so the boss didn’t know what the foreigner said. I hesitated for while, then I came to help the boss. They thanked for me so much and I felt very happy and exciting. Since then, I have been determined to learn English well.