19. When I walk) into the room, everyone (work).
10. It (be) a day last September. The sun (shine) and the birds (sing
11. I (walk) along the street when I (meet) an old friend.
12. At 7pm yesterday, we (listen) to music.
Помогите даю 20 баллов . Срочно . Прошу помогите

19 walked,was working

10 was,was shining,were singing

11 was walking,met

12 were listening