153 Copy! Shadow Door!

Ren Xiaosu still greatly respected those in the teaching profession due to his relationship with two teachers, Zhang Jinglin and Jiang Wu.

He stood up and said honestly, "Teacher, I don't know the answers to the questions on the blackboard since I've never learned them in the town's school. I'm starting to catch up from the 10th grade curriculum."

"Alright." The math teacher nodded. "Stop passing around notes in class. If there's anything you don't understand, you may come to the staff room and ask me. My office is on the third floor."

"Thank you, Teacher," Ren Xiaosu said politely.

"Please sit down," the math teacher said with a smile.

In fact, many of those who attended school in the stronghold would stop studying after 12th grade, because the university in the stronghold was not that big and the number of admission spots was limited. 90% of the students in the stronghold had no chance to further their studies.