Make passive where possible

  1. She had completed her assignment before the deadline.
  2. They had already left by the time we arrived.
  3. He had finished his meal before the movie started.
  4. The team had won several matches before they faced their first defeat.
  5. She had read the book before watching the movie adaptation.
  6. By the time I woke up, he had already gone to work.
  7. The students had studied hard for the exam, so they were confident.
  8. They had sold all the tickets before the concert began.
  9. By the time the guests arrived, the host had prepared a delicious meal.
  10. I had finished my homework before dinner was served.
  11. Before the storm hit, they had secured all the windows and doors.
  12. By the time the train arrived, she had already packed her bags.
  13. He had practiced the piano for many years before giving his first concert.
  14. The company had released several products before launching its flagship device.
  15. Before the guests arrived, she had decorated the entire house.
  16. By the time she turned thirty, she had already traveled to over twenty countries.
  17. He had written three novels before his first book was published.
  18. They had built a strong friendship before they became business partners.
  19. Before the invention of smartphones, people had relied on landline phones for communication.
  20. By the time the new semester began, they had completed all the necessary preparations.