Решение:
- I cleaned my teeth three times yesterday.
- It was hot in the room, so I open the window.
- The film was very long. It start at 7.15 and finish at 10 o'clock.
- When I was a child, I want to be a doctor.
- The accident happen last Sunday afternoon.
- The weather is nice today, but yesterday it rain all day.
- We enjoy our holiday last year. We stay at a very nice place.
- Anna's grandfather die when he was 90 years old.
Ответ: cleaned; open; start, finish; want; happen; rain; enjoy, stay; die.