2. If the rock star hadn't argued with the band, they wouldn't have cancelled the concert/the concert wouldn't have been cancelled.

3. If the guard hadn't fallen asleep, the painting wouldn't have been stolen.

4. If the tennis pro, Steve Penn, hadn't broken his leg, he wouldn't have pulled out of the championship.

5. If the storm hadn't hit the country, many villages wouldn't have been flooded.

6. If the man hadn't saved the drowning girl, he wouldn't have won a medal for bravery.