you are asked to write a note to your roommate to explain what you have done to his/her tape recorde

题目

you are asked to write a note to your roommate to explain what you have done to his/her tape recorder and say sorry to him/her.

答案

xxx,
I am returning the borrowed tape recorder of yours.Thank you for your kindness.
I'd like you to know that while using the recorder,the STOP key didn't seem function properly.I think it may be due to my improper use.Before returning,I have the recorded fixed by a friend of mine.It now seems normal.
Sorry for the trouble.Hope it works as before.
xxx