Тom: Have you heard the news about David?
Harriet: No, what has happened?
Tom: He has had an accident. He was walking down some steps, he has fallen and broken his leg.
Harriet: Oh, how awful! When did it happen?
Tom: Yesterday afternoon. Melanie told me about it last night, and you didn't tell me!
Tom: Well, I didn't see you last night. And I haven't seen you today, until now.
Harriet: I hope he's all right. We have had lots of accidents, you know. He had the same thing about two years ago.