no sooner引导什么从句?

　　例句：

　　No sooner had she said it than she burst into tears.

　　她刚一说完，泪水便夺眶而出。

　　No sooner had we sat down at the table than the phone rang.

　　我们刚在桌子旁坐下，电话铃就响了。

　　No sooner had I sat down than there was a loud knock on the door.

　　我刚坐下就有人大声敲门。

　　No sooner said than done.

　　说到做到。

　　No sooner had she fallen asleep than she heard a knock at the door.

　　她刚睡着就听到了敲门声。