The questions ( ) at the meeting were very important.

问题描述:

The questions ( ) at the meeting were very important.
A.to discuss B.discussing C.discussed D.were discussed
为什么不是被动,我觉得应该是D.

C. discussed
( ) at the meeting是一个定语从句,修饰questions,()里完整的应该是which were discussed,这里省略了which were
整句话的意思是在会议上讨论的问题是很重要的大侠为什么were 也要省去呢which在从句中做主语的时候是不能单独省略的~做宾语的时候可以,所以D一定错误的