it is time the people in charge ---their responsibilities more seriously.

问题描述:

it is time the people in charge ---their responsibilities more seriously.
took和should take
为什么选第一个
我记得2种情况都可以的呀
复制的不要,

是两个都可以的,我记得做过类似的题,但不知道你那个选项到底有没有should的,在should接动词原形表示虚拟语气的时候都可以省略,只有这里不能,也就是说should take也是对的,但若是直接take就不对了那就是说2种情况都可以,只是过去式是首选么是的