1. We didn't understand the film
2. The didn't write an answer at once
3. We didn't speak about these problems at the meeting
4. I didn't sleep well last night
5. You didn't tell us about the meeting yesterday evening
6. It didn't take me a long time to get there
7. They didn't live in a long way from here
8. She didn't have a lot of work to do the day before yesterday