请用英语写十条学校食堂的规则,

要给分哦 想了很久的 你再看看可能会有语法错，自己再改改。 Please not waste the food. Please be and give precedence out of courtesy when getting lunch. Don’t go to the kitchen（想不出操作间怎么说了） without allowing. Don't argue or inslut to workers of the dining hall. Please save water and electricity. Have lunch in the dining hall and do not take food out . Please keep the hall clean ,do not spit everywhere. Wash hands before and after having lunch. Obey the rules of the dining hall and teachers' command. Don't jump the queue when getting lunch.