Hi, Allan!
I just submitted my final assignment.
Your classes were very very good. Thank you very much for your kind answers.
Due to the short time between the final test and final assignment,
I finished my assignment without checking your comment of my final test.
However, I tried to write it in as much detail as possible.
During assignment, I had to check everything that I've learned! It was quite rewarding.

Thank you very much and I look forward to your keen evaluation. :-]
I hope you have a good year and good health.

Ah! P.S.!
I've checked a lot before submitting the assignment, but I found some errors after submit.
Press the backspace key once on the second substitution table in the practice stage, please.
This makes the table much easier to see. 
It was pretty clear before submit, but why did it change? :-(
English is hard, but I think computer(Word) is more difficult..