The bell ___the end of the period rang__our heated discussion.

问题描述:

The bell ___the end of the period rang__our heated discussion.
(A)indicating;interrupting
(B)indicated;interrupted
(C)indicated;interrupting
(D)indicated;interrupted

选A
楼上的又误,如果选D,句中有两个谓语indicated和interruped,不明确
indicate的动名词形式做后置定语修饰the bell,译为代表结束的铃声
interrupt是句中的谓语
句子结构为The bell interrupted our discussion