On being told by an assistant that the dress was sold,the woman returned the following morning dressed in a fur coat.
问题描述：
On being told by an assistant that the dress was sold,the woman returned the following morning dressed in a fur coat.
句中on being told 怎么用?
答
on being told by ...that 当被（某人）告知（发生某事）时
全句：当助理告诉她那条裙子已售出时,这位女士第二天一早穿着一件毛皮外套回来了.
用法：on + 动词的 ing 形式,指当...时候,作整个句子的时间状语