I have studied phone english for 2 times, But I couldn't find any MP3 files. So I called to the customer center of cbstudy. The study consultant told me that our recording system had been broken. And she told me that system will be fixed by this weekend. It was not a good news. but I accepted that, cause I had no Idea I went to the chanwon university yesterday, cause I wanted to meet professor Choi is my respected teacher. And I gave my new thesis to him. The thesis's main subject was constitutional right and prostitution. I claimed that lawfull regulation of prostitution can solve many problems of the sex worker's human basic right in the thesis. I had dinner with him, and I came back to my home.

Oh that's really sad to hear. Don't worry, I willallso do my best to discuss this matter to the manager in order to adress this concern properly
I am very sorry about that again!