[综合题]从下列单词中选择适当的词填空，每个词只能用一次。 as          spent            divided           taught          that       over  courses     another        are            it           elementary       usually     Education is one of the biggest and most important jobs of government in the United States. However, it is a task________   is carried out by local governments rather than the federal government. Help from Washington__________   comes in the form of money and research. There are no national educational standards or regulations, ____________  there are in many other countries. Local areas - states or cities or counties - have kept control ____________   their own school systems. In spite of local control, school systems throughout the country ____________   very similar. A child can transfer from a school in one state to a school in __________ ，without meeting any serious difficulty. Different books may be required or different _____________   may be offered, but the same basic subjects are___________   throughout the country.

     The normal school system in the United States consists of six years of___________   school and six years of high school. In many areas, high school is ______________   into three years of junior high school and three of senior. Each school year is called a grade.