I actually ran into the exact same problem. I emailed Dr. Kliffer, the undergraduate chair and I asked if he could open a spot up in (then I listed all possible courses that could fit in my timetable).
He said he couldnt open anything up in terms of 2b03/2bb3 which I kind of figured since everyone who's either in the french program, is minoring in french or need to take specific upper year courses that have 2b03 or 2bb3 as a prereq need it eventually. He however opened a spot up in 2E03 and 2F03, two literature courses. So I think you should try contacting him!