请问no sooner ...than有没有什么时态要求?

问题描述:

请问no sooner ...than有没有什么时态要求?

no sooner...than..."一...就..." 引导时间状语从句,主句用过去完成时,"than"后面的从句用一般过去时.(从这里可以知道,no sooner后面是主句;than后面是从句) 例:I had no sooner reached home than it began to rain...