1.The receptionist welcomed the guests and asked them to fill in the form.
2. The car broke down and we had to walk home.
3. The boys were swimming while the girls were sunbathing .
4. My father came in, looked around and told me to tidy up my room.
6. While the parents were having breakfast, their children were runningabout.
7. Martha turned off the lights and wentto bed.