Tang isn't feeling well, so I'll take his place."Ning Yuan nodded. "Okay."A layer of awkward politeness suddenly separated the two.Rong Zhaonan glanced at her, then turned and walked away.Ning Yuan pr..., it's not that. It's just too sudden. Professor Tang...are you really willing to take me as your student I...I only finished junior high and one year of high school. You're a professor at Peking Univ...