(单选题) How can we understand “children in her day were expected to be seen and not heard”? ( )(本题2.5分)
A、 Children were not supposed to be heard by others.
B、 Children were not supposed to hear their parents. conversation.
C、 Children were not supposed to speak in the face of others.
D、 Children were not supposed to speak until asked to do it.
出自:西安石油大学大学英语(2)作业题