书面表达
假设你是李杰，正通过 e-mail 和美国友好姐妹校的朋友 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，见到老师问个好；
2. 上课专心勤思考，作业认真按时交；
3. 教室保洁场打扫，离班熄灯关门窗；
4. 和谐相处应友爱，互相帮助共进步。
要求：
1.内容完整，书写清楚，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’d like to introduce my class rules made by us all. First, we should _______________________
                                                                                         
                                                                                         
                                                                                         
                                                                                         
                                                                                         
                                                                                         
It’s our duty to follow all the rules above. What about yours? Please write soon.
Yours,   
Li Jie