C684 Private Detective

"Mr Xu."

"Ah?" "What?"

She felt that this class of hers was pretty bad, but the class was just about to end. She looked at her student apologetically, "I'm sorry, I was distracted just now, let me see it again."

As soon as he finished speaking, the bell for the end of class rang. The female student steadied herself and smiled, saying, "It's fine. Mr Xu, I think you're very tired