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（∧），并在其正下方写出该加的词。
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。
Mistakes are common in our life. But attitudes on them may make a difference.
I still remember how my spoken English improved. At the beginning, I always kept
silently in the oral class to avoid to making mistakes. Before long my teacher knew
about my situation. He encouraged me to speak out that I wanted to speak. Whenever I
made mistakes and felt discouraging, my teacher and classmates will help me find out
how I could avoid it in the future. Practice makes perfect. With time went by, I built up
my confidences, and now I can talk fluently in English. Just as saying goes, mistakes are
where success lies. We just need to learn a lesson from the mistakes.