24、你班有些同学有很多不良习惯：教室没人时灯仍亮着，周围废纸太多，黑板不能及时擦，噪音太大，还有的同学上课迟到。请你根据以上现象写一篇短文，向同学们提出这些问题，以便及时改正。（词数：80左右）

24、Some students have very bad habits in our class. For example, the lights are on when there are no students in the classroom. Some students throw waste paper around the classroom. And the blackboard can’t be cleaned on time for the next class. There is much noise in class. All of them are bad for us as well as our school, so I really hope these students can stop the bad habits.