Task 3: Correct the mistakes in these sentences 21. I was sleep when you called me. 22. They were play outside in the morning. 23. She wasn't listen to music, she was watched TV. 24. Were you studying when your mom was come home? 25. While we was having lunch, the phone rang. 26. My dad was fix the car when I arrived. 27. The children was play in the yard. 28. What was she do at this time yesterday? 29. He weren't talking on the phone when I saw him. 30. While I was wrote a letter, my sister was playing the piano.