Harmonic Analysis - final A Section

The final A section is unlike the other two A sections in that it starts out in A Major, and has two completely different b and c sections. The A Major is set up in the last 5 measures of the 'C' section, which were in a minor. The V7 in the measure 100 moves perfectly to the I in A Major in measure 101. Beethoven remains in A Major until measure 108, where the first chord of that measure can either be read as a iv mixture chord in A Major or a diatonic ii in C Major. Beethoven then quickly uses a iio7 mixture chord to further distance the key from A Major before ending the phrase with a half-cadence. The 'b' section begins by finally play a I in C Major. In 112, Beethoven has a sort of open-ended diminished sound that eventually leads to the IV and then a long V7 chord with a chromatic sequence in the melody into the second 'a' section. The 'c' section stays close to the key of C Major, using secondary dominants to set up most IV and ii chords. He ends this section with a half-cadence.