问题
选择题
We’ve been told the good news, but when and where to go for the exciting paid vacation _______ yet.
A．are not discussed
B．have not been discussed
C．is not being discussed
D．has not been discussed
答案
答案：D
题目分析：考查时态，主语是when and where to go for the exciting paid vacation是第三人称单数，因为是被讨论，所以用被动语态，因为后面有yet，经常被用在现在完成时，所以选D
点评：时态常考内容，做时态题时，首先看时间状语，由时间状语确定句子的时态；如果没有时间状语，从句子暗含的意思确定句子的时态