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短文。短文中共有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（∧），并在此符号下面写出该加的词。
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。
The best advice I received in my childhood was from my dad.He always gives me some advice,but I seldom took them seriously.One day he was encouraged me to participate in a speech competition.So I signed up and after the competition,I did my best to be full prepared.But the moment I stood on the stage,I was such nervous that my mind completely went blank. The experience of lose a competition was really painful.Then,my dad said,"My son,life is like battlefield.You have to lose many time to win the final victory."Thanks for his advice,I never give up when I do anything.
