1. I (walk) home when I (see) my brother in law.

2. When Mary (receive) a mysterious message, she (begin) a new investigation.

3. The private investigators (watch) the house when the burglars (return) .

4. Mary (fall) asleep when she (watch) a film.

5. It (rain) when she (crash) her motorbicycle.

6. We were running in the woods when we (hear) a strange noise so we (stop) to listen.

7. I (finish) washing up and then I (phone) Mary.

8. Joe (write) a message when his computer (break down) .