阅读下面短文，根据短文意义，按照语法结构和行文逻辑，在空白处填入适当的单词；或根据首字母提示写出该单词。
More and more middle school students in China are getting shorter sleeping time. Most students sleep f【小题1】than nine hours every night, 【小题2】 they have much homework to do. Some homework is 【小题3】by school teachers, and some by parents. Also, some students don’t know 【小题4】to save the time. They are not careful e【小题5】 while doing their homework, so it takes them a lot of time. Some students have to get up early every morning on w 【小题6】to get to school on time by bus or by bike. It can【小题7】a long way from home to school. Teachers and parents should c 【小题8】down some of the homework so that the children can
e 【小题9】nine hours of sleep every night for their 【小题10】.fewer
网友回答
(答案→)fewer
解析：
【小题1】和shorter对应，用fewer，表示少于9小时。
【小题2】表示因果关系：用because/for
【小题3】用被动式：given /assigned指老师分配的作业
【小题4】how to do做know的宾语
【小题5】careful enough足够仔细
【小题6】去上学是在weekdays ∕ workdays工作日
【小题7】情态动词can 后面加be
【小题8】考查词组：cut down“减少”
【小题9】根据句意和首字母填enjoy，享受每晚9小时
【小题10】根据句意和首字母填health∕bodies，意为：为了健康或身体。