we heard them__about money after the concert,and they looked very angry.
问题描述：
we heard them__about money after the concert,and they looked very angry.
A.quarreling B.quarreled C.were quarreling D.had quarreled
答
选 A
hear sb doing.听见某人做某事
we heard them quarreling about money after the concert,and they looked very angry.
音乐会结束后,我听到他们在吵架,他们看起来非常气恼.