In the tutorial for Lesson 23 in Level 5, Sonia talks extensively about using "entrar en" for getting on/in transportation, and "salir de" for getting off/out of transportation. However, when you begin the workouts, the software instead uses "bajar de" for getting off transportation, and will not accept "salir de" as a correct answer. As far as I can tell, this use of bajar was not introduced at all in any dialog or tutorial on this level or any prior level.
It would be great to have this corrected, and also to have an understanding as to whether both "salir de" and "bajar de" are acceptable uses. Thanks very much.