Hello Mary,I am a boy,my English name is **.My first name is ..and my last name is……My telephone number is……(电话号码)
Welcome to China and I would like to be a good friend of you,If you have any problem,please call me at any time.Good luck
Mary,我是个男生,我的英文名字是……,我的姓是……我的名是……,这是我的电话号码……
欢迎来到中国,我想成为你的好朋友,如果你遇到任何困难,可以在任何时候给我打电话,祝好