- unit-6-criticism -> unit-6-fiscal-an
- unit-6-fiscal-po -> unit-6-internati
- unit-6-internati -> unit-6-middle-ag
- unit-6-migration -> unit-6-popular-a
- unit-6-potential -> unit-6-second-ge
- unit-6-section-1 -> unit-6-the-busin
- unit-6-the-cardi -> unit-6-vocabular
- unit-6-vocabular -> unit-6a-reportin
- unit-6a-why-have -> unit-7
- unit-7 -> unit-7
- unit-7 -> unit-7-at-christ
- unit-7-at-the-zo -> unit-7-course-su
- unit-7-course-su -> unit-7-how-much-
- unit-7-how-much- -> unit-7-kinetics