Translation of auffrischen

Grammar exercises give the teachers and the students different ideas. We discussed the need for exercises in my previous email, but unfortunately I did not receive any further feedback since then.
I have not installed ICQ, unfortunately, but I know many people who use other means of communication, perhaps I can down load it! Currently I am unemployed, I have worked as a waitress.
I think you learn best through writing, talking and reading. Since I'm currently busy at my work and since I have no time for courses, I have no improvement plans for my Spanish studies.