假如我是高中生李华，有感于校园中存在的随意涂写和乱丢垃圾的行为，用英语给校长写一封信 开头如下 D

In order to improve the quality of the students, our school has now started an activity called"Build Civilised Classes and a Harmonious Campus".The topic is to get rid of bad habits and meet civilization. joozone.com
　　Bad habits do exist. Some students throw rabbish and plastic bags everywhere or spit in public. Some boy students wear long hair. Others are even addicted to smoking and drinking. We require that students break away from these bad habits .We urge the students to wear their school uniforms and be polite to others.
　　During the activity, we'll have picture shows, competitions of classrooms and dormitories decoration.

I THINK THESE STUDENTS SHOUD FUCKED THEIR ASS