Gu Chengyu just realized why Mr. Wen suggested Gu Wanhua to take the exam, yet Gu Wanhua didn't even pass the first round.
It turns out, it was Gu Wanhua who proposed to take the exam. His knowledge was somewhat lacking, so the teacher advised him to stay home and build a strong foundation, for he'd be more confident next time. If he failed the county exam, he wouldn't need to retake the first two rounds the next time.
Who would have thought, Gu Wanhua didn't heed the advice, and the teacher could only agree to let him try. Even if he failed, it would be a chance to learn exam skills, so he'd be less nervous in the future. Unexpectedly, Gu Wanhua had quite a bit of confidence in himself. Days before the exam, Mr. Wen allowed Gu Wanhua to stay in Class A, as those about to take the exam shouldn't remain in Class B, which would be unreasonable.