With the coming of the final examination,the teachers are busy ______ the test papers.
问题描述：
With the coming of the final examination,the teachers are busy ______ the test papers.
A preparing B preparing for C prepared D to prepare
选哪个 请详解
答
A
先看D,to prepare是不定式,表示将要开始准备,但事实是准备在进行中,所以不合题意.
再看B,prepare for是为...做准备,但做准备却是为了主语自己,也就是说,成了老师们自己准备考试了,所以去掉.
C不合语法
只剩A,准备考试的试卷,完全符合题意.