Question

Not until the last note died away________that the concert was over.

A．did the audience realize

B．the audience realized

C．the audience did realize

D．realized the audience

 

Answer 1

A

 

句意：直到最后一个音调停止，观众才意识到音乐会结束了。not until位于句首，主句形成部分倒装，四个选项中只有A项符合要求。