相关dutyinthecafeteriafo的文学知识

问题详情：Lastweek,ourclasswas  41 dutyinthecafeteriaforstudentself-management.Onthefirstday,I  42  (shock)toseesomuchleftoverfoodthrownawaybystudents.Whatawaste!Beingconcernedaboutit,myclassmate...