题目内容：

a. Where and when to have the party _____ not been
decided yet.
b. What I say and think _____ nothing to do with you.
A. is B. has C. are D. have
为什么都选B,不是都选A?

优质解答

这里考察主语从句,后面的谓语是完成时态的被动式,然后考察从句做主语,位于用单数
什么时候到哪里去开会还没有决定
是被决定
完成时态的被动式