假设你是李杰，正通过 e­mail 和美国友好姐妹学校的朋友 Tom 交流校纪班规，请你用英语向他介绍下面的“班级公约”。
班级公约
1．准时到校穿校服，见到老师问声好；
2．上课专心勤思考，作业认真按时交；
3．教室保洁常打扫，离班熄灯关门窗。
要求：1.内容完整，意思清楚，表达通顺，书写规范；
2．请勿逐字翻译，词数80左右，不包含已给出的句子的词数。
参考词汇：school uniform；be active in thinking
Dear Tom，
I write to tell you something about our class rules.
First，we __________________________________________________________
________________________________________________________________________
________________________________________________________What about yours? Please write and tell me.
Yours，
Li Jie
 
　范文：
Dear Tom，
I write to tell you something about our class rules.
First，we have__to^① come to school on__time^② and wear school uniforms. We say__hello__to^③ our teachers when we meet them. Second，we must listen carefully in class, and be active in thinking. We must hand in our homework on time. Third，we need__to^④ clean the classroom every day. We must turn off the lights and close the doors and windows before leaving. We think these rules are__good__for^⑤ us and we all follow them. What about yours? Please write and tell me.  
名师点评：
◆本文运用了“总分总法”。总：开门见山；分：详述制度；总：陈述观点，发表看法。
◆本文添彩点：
运用了have to, on time, say hello to, need to, be good for 等高级词汇,为文章增彩不少。