Ответ:

2)What book were you reading when the phone rang?

3)I took this photo while you were competing

4)while mum was making dinner we watched tv

5)the boys were already playing football when Dick joined them

6)we heard the bell ringing when we were talking

7)was getting/went

8) learned/was drawing

9)were enjoying/went off

10)was cycling/saw

Объяснение: