Ответ:

Перевод задания: Раскройте скобки, поставив глагол в нужную форму — Past Simple или Past Continuous.

  1. Yesterday at 7 PM, I was reading a book when the phone rang.
  2. While she was cooking dinner, her friend came over.
  3. They were walking along the beach when they saw a beautiful shell.
  4. Last week, Tom finished his project on Friday and then celebrated with his team.
  5. The students were studying quietly when the teacher entered the classroom.
  6. I didn’t notice the time while I was working on the report.
  7. When the bus arrived, we were still waiting at the stop.
  8. She was writing an email when her laptop suddenly shut down.
  9. In 2020, my family moved to a new city, and I felt a bit nervous at first.
  10. While the kids were playing in the garden, their mother was watching them from the window.
  11. Were you watching TV when the power went out?
  12. What was she doing at 8 PM last night?
  13. Were they walking along the river when they saw the rainbow?
  14. Why did he leave the party so early?
  15. Did the rain start while you were waiting for the bus?
  16. What time did the concert begin, and had you already taken your seat?
  17. Was your sister studying when you called her?
  18. How did they get to the airport yesterday?
  19. Did you notice anything strange while you were looking around the room?
  20. Who called you while you were having dinner?

Правило: Past Continuous обозначает действие, происходившее в определённый момент или фоне другого события; Past Simple — завершённое действие или событие, которое его прерывает.

Перевод: В предложениях использованы формы Past Simple и Past Continuous согласно контексту: длительное фоновое действие передано Past Continuous, а краткое завершённое событие — Past Simple.