1. I did not go to the park yesterday.
2. They were watching TV when the phone rang.
3. She had finished her homework before she went out.
4. I went to the library last Saturday.
5. They played soccer in the park last week.
6. The teacher told us a story about the past.
7. I was born in 2000.
8. They were excited when they won the game.
希望这些例句对你有所帮助!