I found a dog in the road and I don't know whose it is. 谁把所有的饼干都吃了?我在路上发现了一只狗,但我不知道它是谁的狗。 I found a dog in the road and I don't know whose it is. Who's calling please? 我在路上发现了一只狗,我不知道它是谁的狗。请问您是哪位? Who's (who...