问题描述：
帮帮小弟阿!
为班级制定一些规章制度,50个字以上 用must和mustn'写 如果好的话有追加分
mustn't must 用这两个写 要50字以上
问题解答：
我来补答
1.Everyone must pick up their rubbish and put it in the rubbishbin when leaving the class.You mustn't leave any rubbish behind.
2.Cellphones must be turned off during class.
3.Uniforms must be correctly worn.
4.Eveyone must be silent while the teacher is talking.The teacher should not have to talk over the students.
5.Everyone must do what the teacher says,must not disorbey the teacher.
6.Mustn't fight each other,must be friendly to each other.
7.Must do your homeworks.
8.Everyone must obey these rules!
不知到有没有50字.想到的只有这些.我想这些应该有50吧.
