Daniel comes from Sydney. He is now staying in Beijing with his family. He usually gets up at about 6:30 am and has breakfast at 7:00 am. Then he leaves home at 7:15 am.

    He gets to school at 7:45 am. His first class begins at 8:00 am. There are four lessons in the morning. Morning classes are over at 11:50 am, and he has lunch 10 minutes later.

    Afternoon classes begin at 1:30 pm. There are two lessons in the afternoon. They are over at 3:10 pm. Daniel usually stays at school for another hour to play soccer, and then goes home.

依次填入下列各句横线中的成语，最恰当的一组是（     ）

①领导干部要坚持原则，恪守规矩，严格按党纪国法办事，不能成为不正当社会关系的编织者，绝不搞看人下菜、__________那一套。

②一个成熟的人绝对不会 ________，他对自己的每个承诺都相当重视，在许诺之前都会周密考虑自己的话是否真能实现。

③有评论指出，特权阶层__________ ，已经严重危害到高考招生的公信度，这种现象必须引起相关部门的足够重视。