假如你是简，你要给校长写一篇抱怨食堂的英语信，内容应涉及饭菜质量不好而且贵，种类单一，服务不好……

Dear headmuster
I'm not satisfied with our school dining hall.
Many reasons account for it . First of all, the food doesn't taste delicious and very expensive. What's worse, the kind of food is very few , all of us are tired of these food. Last but not least, the service here is very bad.
As far as i'm concerned, only we eat delicious food ,can we have energy to study well. In conclusion, the dining hall must be improved

Dear headmuster，I can‘t stand any more！The food in the dining room is very delicious，you know？It tasted like a dogshit，oh，fuck man！