单项选择题
A．They are not useful. B．They foster unnecessary competition. C．They should be optional. D．They are currently in us
A．Grades should be abolished. B．Grades impose subjective standards of success. C．Students should be able to learn without worrying about grades. D．Competition may discourage students from pursuing subjects such as drama and art.
A．students to get good jobs B．students to participate in music, dramatics, and sports C．students to compete more for grades D．educators to have more control over grades