Secondly, I'll prepare the second day course after finishing my homework, if time is very late I will sleep, because of staying up late will affect the second day efficiency in class.

其次 我会在完成作业以后预习第二天上的课， 如果时间已经很晚了我就会直接睡觉， 因为熬夜会 影响第二天的听课效率。

youdao

Enrolled Penn students who complete the online option can take a departmental exam to prove their knowledge and pass into higher-level math classes, just as they can after finishing an AP class.

WSJ: Big MOOC Coursera Moves Closer to Academic Acceptance