"Oh Dr. Ahmad, I'm glad to know you're still giving courses, because the lectures you gave us in AFK were of a very great benefit. We were lucky to have you, and anyone who will attend your lectures will be lucky to have an instructor like you. Best wishes"
"Hello Dr. Ahmad, I was only saying the truth, without you, me and many others wouldn't have been able to pass the AFK in such a short period of time to prepare for it"