Translation of discretion in German

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.
Yes, but I was unable to work on this yesterday, and today will be almost impossible too. Between tomorrow and Sunday you'll have quite a few more entries in the system. I just wanted to know how it is going.
How long have you had your dog? Does your wife take him for a walk too? Please send me my e-mails to the address listed below and add your own pictures too. I want to know a lot about you.