Что нужно написать в место точек My friend ........ (talk) on the phone when I came into the room. What .......... (you/do)

1. My friend was talking  on the phone when I came into the room.

2. What were you doing at 4 o\'clock yesterday afternoon?

3. I was speaking English when my teacher came into the classroom.

4. Omar was reading a book when Colin phoned him.

5. Dmitry was writing a litter when I walked into the room.