loudspeakers were fixed in the hall so that everyone an opportunity to hear

题目

loudspeakers were fixed in the hall so that everyone an opportunity to hear
loudspeakers were fixed in the hall so that everyone an opportunity to hear
the speach.
A ought to B must have
C may have D should have
为什么选D不选A?
这是虚拟语气吗？我怎么觉得不是？

答案

虚拟语气不仅用于条件从句,下面的从句也需要用虚拟语气：1.表示个人意愿（如建议、命令、要求、主张等）的名词从句——动词要用 should do 或者省略 should 直接用动词原形 do,如：1）宾语从句：I suggested that he...