What will you do during Christmas vacation?" "I don't know,but it's time___

问题描述:

What will you do during Christmas vacation?" "I don't know,but it's time___
a、I'm deciding
b、I'll decide
c、I decided
d、I'd decided
用了虚拟语气中的什么语法现象 详解,谢

c
It is (high) time that ,后面的从句谓语动词要用过去式或用should加动词原形,但should不可省略.例如:
It is time that the children went to bed.
孩子们该睡觉了.
It is high time that the children should go to bed.
这个题目省略了that.
翻译:圣诞假期你要做什么?不知道,该是我决定的时候了.