In China, more and more middle school students are getting (1) sleeping time than before. Most students sleep (2) than nine hours every night because they have much homework (3) . Some homework is(4) by their teachers, and some by their (5) . Also, some students don’t know how to (6) time. They are not (7) while they do their homework, so it (8) them a lot of time. Some students (9) too much time watching TV programmes or (10) computer games. They stay up very late. Some students have to (11) early every morning on weekdays (12) on time by bus or bike. It can be a long way from home to school. Schools and parents should cut down some of the homework so that the children can (13) more than nine hours of sleep every night for their (14) . As we all know, children are our country’s future. They should be well(15) .