Read the dialogue and compare the use of the Past Simple and the Past Perfect Tenses. Make up your dialogue. Mary: Why did you go home before the party had finished? John: I had forgotten to switch my TV-set off. Mary: What had happened when you got home? John: My brother had switched it off for me. Mary: Then why didn’t you come back to the party? John: Oh, I had left the TV on deliberately (намеренно) because I didn’t want to stay at the party.