Yun Shuangshuang answered the questions very quickly. While other students had not even finished half of the paper, she had already completed it.
After completing the paper, Yun Shuangshuang didn't rush to submit it; instead, she carefully checked it from beginning to end.
Even if she knew all the answers to the questions on the paper, Yun Shuangshuang wouldn't let her guard down. Often, knowing the answers isn't enough; carelessness can lead to mistakes, and Yun Shuangshuang didn't want to make such simple errors!
After meticulously checking the paper and ensuring that there were no oversights, only half of the exam time had passed. While the surrounding students were still buried in their work, Yun Shuangshuang decided not to sit around needlessly. She raised her hand, submitted the paper, and went out to find her mom for lunch.
The teacher who collected Yun Shuangshuang's paper frowned. It was unusual for a student to finish so quickly!