III.Fill in the blanks with the correct form of the verb:
1. Helen (to do) her weekly shopping when she (to meet) her old friend, June.
2. I (to get) stuck in traffic because there (to be) an accident.
3. The sun (to shine) when I (to get up) in the morning.
4. The train (already/ to leave) when I (to arrive) at the station.
5. It (to rain) very hard, so the referee (to decide) not to play the match.
6. Before he (to rush) downstairs to the kitchen, he (to make) his bed.