假如你是李华，进入高一后一直想买一个MP3，但是母亲反对。请你根据下列信息，给妈妈写一封信，说服她满足你的愿望。
使用MP3的目的：1．听语文、英语课文录音
               2．偶尔听音乐放松大脑
承诺：1．只在课外学习疲劳时和睡觉前听
2．作为回报，多做家务
注意：1．可适当增加细节，以使行文连贯；
2．词数100左右。开头及结尾已给出，不计入总词数。
Mum,
As I’m in Senior 1, I strongly feel the urge to get an MP3 player, so I’m writing to you. First______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________.
Hope you’ll satisfy this request of mine．
Yours,
Li Hua