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。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.每处错误及其修改均仅限一词；

2.只允许修改10处，多者（从第11处起）不计分。

I was far behind most of my classmate when I become a senior three student. Moreover, I couldn't follow the teacher completely in class. One day, I was too much exhausted and confused to concentrate on which the teacher taught. Unfortunate, I was invited to share my own idea. As you can imagine, I couldn't say a word. Feeling embarrassing, I ready to be criticized. Much on my astonishment, the teacher instructed and encouraged me patiently. I was such touched that I was determined to try his best to study hard. Now I am quite confident about my study.