He really admired Qiao Ze's ability to multitask.
He was clearly focused on his work, yet he could still chat with Su Mucheng without slowing down, which was even more frightening.
But Su Mucheng had already confirmed that chatting with Qiao Ze on the side didn't affect his work at all, which is why she specifically chose such times to share trivial matters with him.
The two had already developed a tacit understanding.
If Su Mucheng said something and Qiao Ze didn't respond, it meant that he couldn't be distracted at the moment. If Qiao Ze responded, then it meant they could chat about anything.
"What else could it be, the test was tough, and then seeing you submit your paper so early threw me off balance. Sigh..." Su Mucheng sighed.
Qiao Ze replied, "While doing the test, I compared some data from yesterday and had some new ideas, so I finished quickly. Should I go slower next class?"