Mr. Yang, Is There a Typo?

"What?"

"Really?"

All the teachers ditched their work in hand and came to look. 

Even teachers who taught other subjects couldn't help but go and peek.

Zhang Dejun stared at Yang Lianfeng, who was the first to get there, "Mr. Yang, look, it's this student. Based on the exams I've been marking, she should've written in the last exam center."

"Other than multiple choice, others basically scored 0 on all the other questions. But this kid scored perfect! This kid's better than me! That's why I ask if some honor student didn't write our last practice exam."

Yang Lianfeng pondered, "Nobody was missing from my class. On the overall ranking last time, I spotted Ye Fan and Qi Rui."

Then, he looked over to the other teachers, "Did any of your kids miss the last exam?"

Everyone shook their heads. 

"How strange." Zhang Dejun looked down on the test again, "Could it be a black horse emerged?"