Naturally , each and every member of staff is different - some employees want to do easy, ______ tasks without any responsibilities at all, whilst others prefer challenging , varied ones and.

其中有两个选项 a. usual       b. routine.          答案选routine, 那为什么不选usual 了?

of course ,with a job there are more factors in play than this: work conditions, pay, working relations and future prospects are ______ too;

其中有两个选项 a. relevant       b. releted.          答案选releted, 那为什么不选relevant了?

怎么用crash down? crash 是一个及物动词, 那为什么还要用crash down 了?