Sunday is more like Monday than it used to be. Places of business thatused to keep daytime “business hours” are now open late into the night. And onthe Internet, the hour of the day and the day of the week have become irrelevant （不相关的） . A half centuryago in the United States, most people experienced strong and precise dividinglines between days of rest and days of work, school time and summer time. Todaythe boundaries still exist, but they seem not clear. The law in almost all states used to require stores toclose on Sunday in most, it no longer does. It used to keep the schools openin all seasons except summer in most, it still does. And whether the work weekshould strengthen its legal limits, or whether it should become more“flexible,” is often debated. How should we, as a society, organize our time?Should we go even further in relaxing the boundaries of  time until we live in a world in which everyminute is much like every other? These are not easy questions even to ask. Part of thedifficulty is that we rarely recognize the “law of time” even when we meet itface to face. We know as children that we have to attend school a certainnumber of hours, a certain number of days, a certain number of years — butunless we meet the truant officer （学监） , we may wellthink that we should go to school due to social custom and parents’ demandrather than to the law. As adults we are familiar with “extra pay for overtimeworking,” but less familiar with the fact that what constitutes （构成） “overtime” is a matter oflegal definition. When we turn the clock forward to start daylight-saving time,have we ever thought to ourselves: “Here is the law in action”? As we shallsee, there is a lot of law that has great influence on how we organize and usetime: compulsory education law, overtime law, and daylight-saving law — as wellas law about Sunday closing, holidays, being late to work, time zones, and soon. Once we begin to look for it, we will have no trouble finding a law of timeto examine and assess. 67. By saying “Sunday is more like Monday than it usedto be”, the writer means that . A. work time is equal to rest time B. many people have a day off on Monday C. it is hard for people to decide when to rest D. the line between worktime and rest time is unclear 68. The author raises the questions in Paragraph 2 to introduce the factthat people A. fail to make full use of their time               B.enjoy working overtime for extra pay C. are unaware of the law of time                   D.welcome flexible working hours 69. According to the passage, most children tend to believe that they goto school because they ______. A. need to acquire knowledge                         B.have to obey their parents C. need to find companions                             D.have to observe .the law 70. What is the main idea of the passage? A. Our life is governed by the law of time. B. How to organize time is not worth debating. C. New ways of using time change our society. D. Our time schedule is decided by social customs. 21 世