It is (high) time that表示“是該做......的時候了。后面的從句謂語動詞要用過去式或用should加動詞原形,但should不可省略。例句:It is high time that we should tell him the truth.是我們該告訴他真相的時候了。

It’s high/about/good time that+從句句式的用法
這種句式常用it作形式主語,that從句為主語從句,句中常用一般過去式或“should+do”的虛擬語氣結(jié)構(gòu)。注意:其中should不可省略; time前不加定冠詞the.
結(jié)構(gòu):It’s (high/about/good)time that sb did/should do sth
例如:是時候為夢想拼搏奮斗了。It’s high/good/about that we struggled/should struggle for our dream.
練習(xí):瑪麗是個空談家,是她該做些什么,而非空談的時候了。Mary is a great talker. It’s high/about/good that she ______ something instead of just talking.
答案:did/should do