Odpowiedź:
1 I didn't have any chocolate because my sister had eaten it.
2 By the time I arrived at the party, most people had left.
3 I couldn't buy the magazine because I had forgotten to bring my wallet with me.
4 I didn't recognise my cousin. He had grown a beard. 5 After I had done my homework, I played computer games.
6 We couldn't get home because we had missed the last bus.
7 After I had written the answer, I realised I had made a mistake.
8 I didn't watch the programme because I had seen it before.
Wyjaśnienie:
Past Perfect - had + past particple