The American Federation of Teachers criticized the government's delay in releasing the results of the study, which is called the National Assessment of Educational Progress. Union education experts say the study shows that charter school students performed worse on math and reading tests than students in regular public schools.

　　Some experts say the study is not a fair look at charter schools because students in those schools have more problems than students in traditional schools. Other education experts say the study results should make charter school officials demand improved student progress.

　　1. If a private company wants to operate a charter school, it must ________.

　　A. try new methods of teaching

　　B. prove its management ability

　　C. obey the local and state laws

　　D. get the government's permission

　　答案　D

　　解析　细节理解题。根据第二段的第二句Private companies operate some charter schools. 和最后一句These governments provide the schools with the agreement called a charter that permits them to operate. 可知答案。

　　2. Charter schools are independent because ________.

A. they make greater progress