Translation of penitenciaría

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 think I have told you that I won't charge you for this kind of help. I looked at the sentences and I found them a little too long. They were good, but I understand why it took you so long and I think the point is too keep the shorter.
I'm also not interested in such things, but I had a classmate who recommended the book 'Mice and Men' and that's why I bought it. It is a very interesting book and tells about old times in the U.S.