用英语给上海的朋友写一封50个词的信

DEAR ***:
It's been a long time since last time we met/talked,i miss you so much.I am so busy with my study,hoping that i will great progress this term.At leasure time,I will do some sports to exercise myself.How are you doing these days?i really want to go to Shanghai to pay you a visit some day.Please write back when you receive this letter.
Yours ...
翻译：亲爱的某某,自从上次我们见面/交谈已经很久了,我非常想念你.我最近学习很忙,希望这学期成绩能有明显进步.平时我会做些运动锻炼自己.你最近好吗?我真的很希望有一天能到上海来看你.收到这封信后一定要尽快回信哦.某某某