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： 在错的词下划一横线, 并在该词下面写出修改后的词。

注意： ⒈每处错误及其修改均仅限一词;

⒉只允许修改10处, 多者(从第11处起)不计分。

    I am grateful to my English teacher Susan, at whose help I couldn't have won first prize in the English Talent Competition for high school student last week.

    I used to be poorly in spoken English. I was too shy to speak in class. Since she teaches us last term, she has been encouraging him to overcome fear and speak out in class. Thanks to her, I have made great progresses. Besides, I practiced several times in the front of her.  It was her advice which made me a better speaker and full of confidence.  But I owe my success to her.

    Susan set a good example to me. I am determined to become an English teacher when I grow up.