Dear headmaster: I'm one of your students. I'd like to tell you something about service condition of canteen. Our canteen has a lot of merits. It's very clear. The food is very delicious. The service attitude is good. But it also has some shortcomings. The price is a little bit high. High-fat meat is much more than fresh vegetables. And the time of waiting is too long. I hope these questions will be solved soon. Yours, Li Hua