请问这句话是不是虚拟语气呢?

题目

请问这句话是不是虚拟语气呢?
Obviously,it is high time that we took some effective measures to solve it.
是省略should的虚拟语气吗?可是 took 怎么不用原型呢?

答案

这是虚拟语气.
It is high time that 从句要用虚拟语气,可以用两种形式表达：1,谓语动词用一般过去时,如楼主的这句正是属于这种情况；2,谓语动词用should +动词原形.以第1情况较为常见.