Many students ___ preparing for the midterm examination.A.are engaging in B.are engaged in C.are engaging themselves D.are engagingA错在哪里?

问题描述:

Many students ___ preparing for the midterm examination.
A.are engaging in B.are engaged in C.are engaging themselves D.are engaging
A错在哪里?

b

这个应该选B吧,固定词组 be engaged in 是忙于的意思,A不应该是ing形式啊,是ed形式,这个句子的意思是许多学生都在忙于为期中考做准备.