UC知道It's (high,right,about) time that
来源：百度知道 编辑：UC知道 时间：2024/06/17 00:11:44
有充分把握的才回答哈
希望大家就这个问题给点实质性的回答，其他虚拟语气的知识就不必了。我是在做这个题的时候遇到了既有过去时又有should+V.原形，搞不懂怎么回事了，用过去时毫无疑问，但没选should+V.原形又怎么解释呢？
特殊的虚拟语气词：should
1） It is demanded / necessary / a pity + that…结构中的主语从句的谓语动词要用should 加动词原形，should 可省略。
句型：
(1)suggested
It is (2)important that…+ (should) do
(3) a pity
(1) suggested, ordered, proposed, required, demanded, requested, insisted； + (should) do
(2)important, necessary, natural, strange
a pity, a shame, no wonder
(3)It is suggested that we (should) hold a meeting next week.
It is necessary that he (should) come to our meeting tomorrow.
2）在宾语从句中的应用
在表示命令、建议、要求等一类动词后面的从句中。
order, suggest, propose, require, demand, request, insist, command, insist + (should) do
I suggest that we (should) hold a meeting next week.
He insisted that he (should ) be sent there.
注意： 如suggest, insist不表示"建议" 或"坚持要某人做某事时"，即它们用于其本意"暗示、表明"、"坚持认为"时，宾语从句用陈述语气。
The guard at gate insisted that everybody