短文改错（共10小题；每小题1分，共10分）
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：在缺词处加一个漏词符号（∧），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的词
注意：1. 每句不超过两个错误；
2. 每处错误及修改均仅限一词；
3. 只允许修改10处，多者（从第11处起）不计分。
In our daily life, we unavoidably come across many challenge now and then. I meet a big challenge when I was in high school. I was shocked to find which the physics teacher taught was totally beyond his understanding and I lost my confidence completely. Think I lacked a gift at physics, I stopped making efforts and my grades were poor. Fortunate, my teacher didn’t give me up. Instead of, she helped me analyze my problem and I realized I needed face challenges bravely. I regained my confidence, adjusted my approaches but worked hard. I improved my physics before long.