Jack is a great talker.It's high time that he __ something i

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Jack is a great talker.It's high time that he __ something instead of just talking.
A.do
B.did
为什么选B不选A?

这里涉及词组 It's high time did sth 表示做.的时候到了
是要固定记忆的搭配,在例句里翻译为,JACK是很好的发言者,现在是他该做的点什么来代替仅仅发言的时候了.
再问：可 It's high time did sth 中的is可不是过去式啊，不是说句子的时态要一致吗（除客观真理外）
再答：是的，所以我说这是特殊的固定搭配~ 区别只在time前面的词如果是别的，it is the right time to do ,it is the correct time to do 或者仅仅是it is the time to do都是 to do 的格式，只有high time后面是用did的，不过这种特殊用法在高中阶段只有这样一个~

Jack is a great talker.It's high time that he __ something i 虚拟语气 Jack is a great talker,It's high time that -------somet Jack is a great taller.But it's about time he did something it's high time that he(did)something instead of just talking It is high time that something were done upon it It is high time that something were done upon it. It is high time that something was done about it. it is high time that we placed great emphasis to. I'm afraid he's more of a talker than a doer,which is _____ I'm afraid he's more of a talker than a doer, which is why h I'm afraid he's more of a talker than a doer,which is ______ I’m afraid he’s more of a talker than a doer，which is ______