It is (high) time that表示“是该做......的时候了。后面的从句谓语动词要用过去式或用should加动词原形，但should不可省略。例句：It is high time that we should tell him the truth.是我们该告诉他真相的时候了。
It’s?high/about/good?time?that+从句句式的用法
这种句式常用it作形式主语，that从句为主语从句，句中常用一般过去式或“should+do”的虚拟语气结构。注意：其中should不可省略;?time前不加定冠词the.?
结构：It’s?(high/about/good)time?that?sb?did/should?do?sth
例如：是时候为梦想拼搏奋斗了。It’s?high/good/about?that?we?struggled/should?struggle?for?our?dream.?
练习：玛丽是个空谈家，是她该做些什么，而非空谈的时候了。Mary?is?a?great?talker.?It’s?high/about/good?that?she?______?something?instead?of?just?talking.
答案：did/should?do