"I still have to start on the History of Magic assignment." History of Magic was important of course, but even Severus had to admit that it was boring at times, even he had a hard time staying focussed when Professor Binns was talking.
"I was working on Potions." He had the textbook still open on his lap, the parchment next to him was filled with his tiny handwriting, mostly comments on things he wanted to look further into and mistakes he thought were in the text.