1.
While he was riding in the forest he lost way. 2.
When I arrived, the party was in full swing. Paul was dancing with Mary, and Pat and Peter were drinking
champagne. 3. When I finished the ironing, I cooked dinner. 4. How fast were they travelling when
their car had a puncture. 5. A police car passed
us on the motorway when we were doing 80 miles per hour. 6. I
took a photograph of him while he was eating an
ice-cream. 7. I’m sorry I woke you. What were you
dreaming about? 8. What were you doing when I
phoned you last night? There was no reply. 9. Two burglars
broke into the house while we were watching television. 10. I
found my lost key when I was looking for my passport. 11. I
was having a beautiful dream when the alarm clock rang. 12. It was a
fine day when we were leaving the house that day. A light snow was falling and a light wind was blowing from the south-west.
We were pleased that it wasn’t raining.