1) The receptionist (welcome) the guests and (ask) them to fill in the form.

2) The car (break) down and we (have) to walk home.

3) The boys (swim) while the girls (sunbathe) .

4) My father (come) in, (look) around and (tell) me to tidy up my room.

5) As long as one group (prepare) dinner, the others (collect) wood for their campfire.

6) While the parents (have) breakfast, their children (run) about.

7) Martha (turn) off the lights and (go) to bed.

8) I (jog) in the park, when two squirrels (cross) my way.

9) Robert (fall) off the ladder when he (pick) cherries.

10) Archimedes (discover) the theory of buoyancy while he (take) a bath.