Please write a composition on the topic of "one sentence"

I did well in math this semester, but this exam plummeted, with only 78 points. Holding this paper, I was blinded, and attending class all afternoon was like a "walking corpse". How can I explain going home? My parents are still blowing their beards and glaring after reading the papers, and then they beat me up? !

School is finally over, and I walk out of school with a heavy heart. As soon as I left school, my father came face to face and carried it to the car. After the car started, my father and I chatted. "How was the exam?" Hearing this sentence, I immediately became nervous, but I thought to myself: I have to face it. Therefore, my heart is horizontal, throwing caution to the wind! "The examination papers have been handed out." "How much is the test?" Dad's tone is somewhat hopeful. I looked down and answered, "78." At that time, the atmosphere inside the car faded. After a long time, my father said, "Look." I bowed my head and gave it to my father with a "mmm". Dad took it and buried himself in it. This seems to be the calm before the storm. Sure enough, dad took the paper, his face was ugly and his hands began to shake.

As time went by, I was sad to see the elusive expression on my father's face. I made up my mind that I would never let my father down. After a while, my father stuffed the test paper into my arms and drove away. ......

When I got home, Dad didn't say anything. He took the test paper from me, wrote a few words, signed it, and went to cook. I took the paper and saw a sentence on it:

You need to work hard to catch up.

I immediately understood my father's painstaking efforts. My father's understanding and expectation for me will be the eternal motivation in my study career!