A: John, you are late again.

约翰，你又迟到了。

B: My mother was ill, and I ...

我母亲病了，我……

A: Do you think I would believe a story like that?

你认为我会相信这样的故事吗?

B: Well, the truth is I overslept.

好吧，事实是我睡过头了。

A: He promised to allow us a commission of 10%.

他答应给我们10%的佣金。

B: It's hard to tell.

那很难说。