题目内容：

增加：在缺词处加一个漏词符号 (∧) , 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。

I always wanted to be great scientist. I had a dream of discovering a new drug that would save hundreds of people’s life. Unfortunately, I was never very well at chemistry at school and the teacher was used to get angry with me. I decided to becoming an inventor and designed an amazing new product. My parents were encouraging, but told me to be a few more realistic. A few weeks late, I had an idea of designing a pen to write in water. In my disappointment, a friend of me pointed out that it was not a new invention.