她一到就开始下雨了。

___No ___sooner had she arrived ___than it started to rain.

会议一开始，火警就响了。

___No ___sooner did the meeting begin ___than the fire alarm went off.

他刚结束演讲，观众就爆发出掌声。

___No ___sooner had he finished his speech ___than the audience burst into applause.