1. After we had had the argument
5. When they had had their dinner
7. They had won the competition
3. She started reading a new book
2. By the time I realized my mistake
6. He didn't swim
4. They hadn't eaten anything all day
they washed the dishes.
because he had forgotten to bring his towel.
so they had a party to celebrate.
I had sent the nasty message.
I did something stupid.
because she had finished the one she was reading.
so they ordered a big pizza.