您要查找的是不是：
- Can you imagine who is knocking at our door outside? 你能猜想是谁在敲门吗?
- Who is knocking at the door? 谁在敲门?
- Who is knocking the door / Who is knocking / Who is at the door / Who is knocking at the door? 谁在敲门
- Who is knocking? 谁在敲门?
- Someone is knocking at the door. 有人在敲门。
- If it is a workman, I need but knock against the wall, and he will cease to work, in order to find out who is knocking, and why he does so; but as his occupation is sanctioned by the governor, he will soon resume it. 假如这是一个工人，我只要敲敲墙壁，他就会停止工作，并过来查究是谁在敲墙，为什么要敲墙，由于他是监狱长派来干活的，所以不久就会重新干起来。
- Who is the boy in the official school cap? 那个戴校帽的男孩是谁？
- He is a worker who is obsequious to the boss. 他是个对老板卑躬屈膝的人。
- Don't argue with one who is in hot blood. 不要和正在气头上的人争论。
- It is hard to tell who is who in the parade. 在游行队伍中很难分清谁是谁。
- Somebody is knocking, please answer the door. 有人敲门，请开一下门。
- Who is first in succession to the throne? 谁是王位的第一继承人?
- Somebody is knocking at the door. 有人在敲门。
- Tom is knocking a nail into the wall. 汤姆正在往墙里钉钉子。
- A person who is virtuous is also courteous. 有德者必知礼。
- Listen! Someone is knocking at the door. 听!有人在敲门。
- He who is ashamed of asking is ashamed of learning. [谚]耻于问即耻于学。
- It sounds as if someone is knocking at the door. 听起来好像有人在敲门。
- Who is the founder of the scientific socialism? 谁是科学社会主义的奠基人？
- Someone is knocking; will you get it? 有人敲门，你去开一下门好吗?
