1. was studying
2. started
3. was cooking
4. learned
5. rang
6. were laughing
7. was working
8. was doing
9. were waiting
10. was listening
11. were watching
12. arrived
13. happened
14. were walking
15. was reading
16. called
17. were preparing
18. was running
19. were having
20. entered
بنظرم اولی باید wasو ingبگیره چون ساعت 9 شب کاری داشت انجام میداده اونی ک نوشتی اشتباه بود
دومیم ک جواب داده بودی معلوم نبود چی نوشتی ولی انگاری ingدادی بهش ک بازم اشتباه درمیاد جوابت ما کاریو ک قبلا انجام داده بودیمو میومدیم ingمیذاشتیم نه وقتایی ک ناگهانی یا کوتاه
اینجا باید ساده بیارم بدون ing
