假如你叫李华,你的美国朋友Tom要来你校学习一年.请根据提示给他写一封电子邮件,

As is known,before you get to my school,you should prepare foe uniforms,and you must respect teachers,and the most important thing is that you have to be on time。While you also should not bring some dangerous things to class。That is all,you can inform me as you get to China。