A:
B:
C:
D:
John: What do you do on Sundays?
Tom: I read books and watch TV. What do you do on Sundays?
John: I do my homework . What about you, Mary?
Mary: I clean my room and watch TV.
John: You're helpful.
|﹣4|等于( )
对政府权力进行制约和监督要建立健全权力运行的监督体系,这个体系要靠( )