What were you doing when someone knocked at the door?当有人在敲门时你在做什么?
问题描述：
What were you doing when someone knocked at the door?当有人在敲门时你在做什么?
I was having breakfast when someone knocked at the door.当有人在敲门时我在吃早餐.
帮我看看翻译有没有错
答
没错.