The subject of these lectures ____by the lecture committee.这个题
问题描述：
The subject of these lectures ____by the lecture committee.这个题
我就想知道为什么B要不得 lectures是复数 has是用于单数的吧?
A) is announced B) have been announced C) are announced D) has been announced
难道has 的主语是the lecture committee？是的话 我太2了
答
因为subject是 单数的主语
of these lectures 是subject的定语