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Present Perfect or Past Simple?
Put in the verbs.

Tom: Have you heard (you/hear) the news about David?
Harriet: No, ... (what/happened)
Tom: ... (he/have an accident. He was walking down some steps (he/fall) and ... (break) his leg.
Harriet: Oh, how awful! When ... (it/happen)?
Tom: Yesterday afternoon. Melanie ... (tell) me about it last night, and ... (you/not/tell) me!
Tom: Well ... (I/not/see) not last night. And ... (I/not/see) you today, until now.
Harriet: I hope he's all right. ... (he/have) lots of accidents, you know. ... (he/doesn't) the same thing about two years ago.

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.