Its a pleasure to meet you tonight.
Thank you for the chance to help you today as well as for your being cooperative and receptive in class.
I am happy to tell you that it was easy for me to understand you because you speak with neutral accent and that it is also your advantage that you know the grammar rules in English.
As you learn English, you have to also expand your vocabulary so you can express yourself well.
But don't worry, I will help you improve on these things.
Just study hard.
If your time permits, you can also watch English movies as frequent as you can as it will help you expand your word bank, pronunciation and listening skills.
It would be better if you watch them without translation or subtitles as these are incorrect most of the times.
We can also try to enhance your vocabulary by studying Idioms and phrasal verbs.
I will be more than glad to talk to you again and help you further.
Take care for now!