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.
上一篇： need "不必做"和"本不该做"
下一篇： if only和only if 的区别
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为什么成功的投资者善于管理情绪?