[单项选择]In the United States, it is required that all children attend school, public or private, for twelve years. There are【C1】______to this rule, of course, as in the case of certain religious or ethnic groups 【C2】______education is only required【C3】______the eighth grade. And there are some groups of people that see no【C4】______to an education whatsoever and ignore this requirement altogether. But for most, and【C5】______so, a twelve-year education is the minimum In【C6】______of the complexity of our society and the changes taking【C7】______, one would think that a person would need at least twelve years of education in order to cope.【C8】______, in recent years, a great many people have begun to question the purpose of having【C9】______education for twelve years. One【C10】______reason the question is being raised is the fact that an alarming number of young people who graduate from the school systems are【C11】______to handle【C12】______, everyday tasks, such as reading a newspaper, filling out a job application or【C13】______a checkbook. These people are considered "【C14】______illiterate" by experts on the subject, who estimate that one out of five adults in the United States【C15】______in this category. Without【C16】______mastery of everyday skills, it is extremely difficult for these people to comprehend and deal with the demands【C17】______society. And as our language becomes more technical and the law more【C18】______, life in general can only become more frustrating. Of course, efforts are being made to correct the problems as【C19】______agencies and colleges try to reach these people. But they are difficult to reach. Many are embarrassed by the situation and prefer to live【C20】______rather than correct the problem.【C8】
A. Furthermore
B. Though
C. However
D. Besides