他从过去的上学经常迟到，经常不完成作业，放学后经常玩电脑游戏和乱丢垃圾

他从过去的上学经常迟到，经常不完成作业，放学后经常玩电脑游戏和乱丢垃圾到现在的准时到校，上课认真听讲，课后认真做作业，回家后帮助父母做家务，帮助清洁校园

結果 (英文) 1:

He is often late for school from the past often do not finish the job, often after school to play computer games and litter and now got to school on time, listen carefully in class and after class doing homework, returned home to help his parents with the housework and help clean the campus

結果 (英文) 2:

He was often late to school from the past, often do not finish the job, often play computer games after school and littering to now get to school, to class, after-school homework seriously, after coming home to help their parents with household chores, help clean campus

結果 (英文) 3:

He is often late for school from the past, often do not finish the homework after school often play computer games and littering to the school on time, listen carefully in class, after careful homework, after returning home to help parents do housework, help clean the campus