Hans

Hey teacher Hans, thank you very much for helping me alll the time.
I can't thank you enough.
Recently, I have been learning English every day all day, I think I have improved a lot and I have learnt quite a lot, that's for sure, furthermore, this week I speak a little fluently than last week, that's because you helped, I'll stick the good work.
Thank you for the help again, excellent teacher.
Best to you!
John.

It is a very polite lesson. Thank you.