it is high time that 句型

【选择题】有关It is high time that...句型 it is high time that . It is time(high time)that . 虚拟语气句型“it is (high)time that”中的is变成was 英语it is high time that句型后面可以加不定式吗? it is high time that +should do 与it is high time that +did的区 It is high time that they started out.他们该动身了.It is high time 在虚拟语气it is (high)time that句型中 从句谓语动词一定要用过去式吗? It is high time 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.