1. It was a sunny day.
2. Helen walked with her friend Daisy.
3. Daisy arrived.
4. Helen waited.
5. The girls walked.
6. There were two boys there.
7. The small boy fell into the river.
8. The big boy pushed.
9. Helen jumped.
10. Daisy phoned.
11. The doctors and police arrived.
12. They interviewed the girls.

For the dialogue with the Present Perfect or the Simple Past:

1. Minh: I just heard.
2. Mai: Oh, you didn't know.
3. He flew there at the beginning of the month.
4. Have you heard from him? Does he like the life there?