Whole we _______ breakfast,our little boy knocked at the door.

问题描述:

Whole we _______ breakfast,our little boy knocked at the door.
A were having B are having C have D have had

WHILE吧 提问词
选A 当我们在吃早餐的时候,我们家的小男孩在敲门 强调过去在做某事 用过去进行时