However, Wen Shan took a deep breath, raised her head, and threw her glance over again. "It's fine if a professor asks a student to substitute for him. Not recording the class hours aside, the teaching assistants themselves need to fulfill their designated class hours too. It isn't a problem to substitute for the professor's classes, but they still have to record the class hours for the professor. It's fine if it happens once or twice, but Professor Yin, how many times have you attended classes in the past three years? How many students in the School of Physics have seen you? Would you dare to tell us that yourself?"
"Wen Shan, you're a student. The first thing you have to learn is to respect your teachers," reprimanded Professor Hei.
