题目内容：

下面短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。

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，并在该词下面写上修改后的词。

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。

Three years ago,I was chosen by my classmate to take part an English speech competition.When go up to the stage,I felt nervous.At the once,my mother's words came to me,"If you want to succeed,it costs nothing and self-confidence."Since I had the chance to standing here,it meant that I had the ability.I said to myself,"Have you forgotten that you have prepared for this competition for a longer time?You are the best."Strange,my nervousness disappeared.I spoke very fluently that all the audience cheers after my speech.I was successful!