改错题。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(Λ)，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。
Last month the Students' Union of our school organize an English Speech Competition. At first I didn't show some interest and wasn't very much confident. Then my English teacher Mr Smith encouraged me. Inspiring by my teacher, I signed up for the competition and made fully preparations for it. Two weeks later the time I had been looking forward to coming and it was his turn. Glancing at my teacher's smiling face, I built up my confidence and I was one of the winner.
But my teacher's encouragement, I couldn't have won the first prize. I'm proud of Mr Smith or the wonderful experience.
