Since I went to the middle school, careless has always been my weak point. In the exam, I often lose many marks because of careless. At first,I can write down the correct answers of questions, but I can“t in the end. In the words of my physics teacher “you always work away from the correct answers.“Although the words are very funny, it is certainly right. I shoudcorrect this mistake, but what shoud I do for this. Can you help me.

作者：jnn