The receptionist (welcome) welcomed the guests and (ask) asked them to fill in the form
The car (break) broke down and we (have) had to walk home.
The boys (swim) were swimming while the girls (sunbath) were sunbathing .
My father (come) came in, (look) looked and (tell) told me to tidy up my room.
While one group (prepare) was preparing dinner the others (collect) were collecting wood for the campfire.
While the parents (have) were having breakfast the children (run) were running about.
Martha (turn) turned off the light and (go) went to bed.