That it is.

With some effort, Bella is able to put aside her concerns and focus for the rest of the day. A lot of the material her classes are getting into now that the school year is truly underway is familiar, but she doesn't remember all of it clearly enough to get away with daydreaming too much, and some classes are more open to a teacher's interpretation of the curriculum. English is one of them.

When the school day is over, Bella heads right for the nearest door, which is the one Sherlock was most likely talking about.