Don't take your computer game school.Don't run in the street.They must finish their homework on friday =They have to finish their homework on friday.我晚上10点前必须躺在床上.I have to be in bed before...谢谢在帮我编个作文一个关于遵守纪律的短文要有以下内容1不许迟到2客商人怎听老师讲课，及时交作业3保持教室干净4对老师有礼貌5和同学友好相处请别追问与答题无关的题目。如有问题，请另问。