改错题。。I always wanted to be a great scientist.I had dream of

改错题。。I always wanted to be a great scientist.I had dream of discovering a now drug that would save the life of hundreds of people. Unfortunately, I was never very well at chemistry at schools and the teacher was used to get angry with me. I decided to becoming an inventor and designed an samazing new product. My parents were encouraging, but told me to be a few more realistic. A few weeks late, I had an idea of drsigning a pen to write with upside down .In my disappointment ,a friend of me pointed out that it was not a new discovery.