The trip cost us_____ 2000 yuan [ ]

He is very popular among his students as he alwaystries to make them ____ in his lectures

Why isn’t Cathy here yet— She _________ to be picked up at thestation．

下列加点词的用法不同其它三项的是：

I accepted a _____ teaching students ages 6 to 12 withsevere learning and behavioral ____ who’d moved from school to school.