Change the paper diary to 300 words.

In the computer class on Thursday morning, Tong Yan and Linger and I went to help Mr. Chen correct the math test paper. We arrived at teacher Chen's office with a red pen and a nervous mood.

Into Mr. Chen's office, Mr. Chen took out the papers of the three of us and corrected them, and then let us correct the papers of other students according to them. When the teacher was correcting the test papers of the three of us, our hearts were pounding for fear of failing the exam. We all held our breath and stared at whether Mr. Chen's red pen was "X" or "√", and our faces seemed to break out in cold sweat. Finally, our grades came out, and I got 100. I was relieved and danced with joy. Ling He got 99 points, and they all looked a little depressed. Teacher Chen divided 54 test papers equally among the three of us. I took a stack of papers, jumped to the table and sat down to correct them. I walked around in circles and sketched the picture with great interest. This stack of papers was either miscalculated or drawn incorrectly, so I found it out with a "critical eye".

After I corrected the test paper, Teacher Chen gave me a lollipop.

Today, I licked the lollipop that Teacher Chen gave me, and my heart was full of joy. The taste of sugar is refreshing and mouth-watering I thought to myself: this is what I bought with my labor, and it is also what I bought with good grades!