You are in class, but it seems your teacher is running late. After a few minutes, a young-looking guy walks into the classroom and stands at the front of the class.

"Good morning class. Your teacher is sick, so I'll be your substitute for today. Any questions?"

Before anyone could speak up, he cuts them off.

"Okay anyway, we'll be continuing where you left off yesterday." He then places his laptop on the desk and opens it, going through the lesson plan.