Dear Sister,
Thank you so much for your encouraging commendation, even I'm not so good as your saying.
I know that my good performance of study is not from my genius but from my diligence.
Thank you heartily and best wishes for you.
Dear sister,
Thank you for your praise, as a matter of fact, I can get a good result is because of my hard-working,not clever.
Let me thank you once more.
yours sincerely