Jawaban:

1. I was walking across the park when a man stopped me.
2. We were playing hide and seek when the light went out.
3. The children were playing in the garden while the parents were having a discussion in the living room.
4. While we were having lunch, the postman came.
5. What wereyoudoing when the earthquake happened?
6. We were enjoying the dance when the reporter arrived.
7. I was writing my journal when someone knocked on my door.
8. The girls were planting trees while the boys were watering them.
9. The librarian was helping the children at that moment.
10. The mountain climbers were climbing the mountain when the landslide happened.