答案：One possible version: Dear Mr Headmaster, I’m Li Hua, a student from Senior 3. I am writing to draw your attention to some improper behavior among us students---wasting food in the school cafeteria. Some of them throw away a little food while others waste most of them just because the food is not so delicious. As we all know, some people at home and abroad are going hungry seriously. I always feel painful and ashamed whenever I see this. It is obviously inappropriate for students to waste food . In order to solve the problem, some measures should be taken by our school. First, all the students are made to understand that a great number of people don’t have adequate food , which may help them realize how terrible it is for them to waste food. What’s more, I wonder if our school can set up specific regulations against such behavior. I believe that the bad habit will be got rid of soon with our joint efforts. I hope my suggestions will be useful. Yours faithfully, Li Hua
