【it's high time you】

网友回答

这里是习惯用法.
It is (high) time that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.
It is time that the children went to bed.
It is high time that the children should go to bed.
所以说这里用should criticize
======以下答案可供参考======
供参考答案1:
It's high time you___him for his being often late。这里是选criticized。
因为It's high time (that) you+过去时态的从句，是虚拟语气的一种用法。又如：
It's high time you went to school now.
供参考答案2:
criticized
供参考答案3:
criticized
记着这个固定句型 就很简单了 it is（high）time sb did 或者 it is high time that sb should do sth