2. In ancient times, it was necessary for a man to learn how to defend himself; otherwise, he was easily killed by other men.

 3. Traffic is really bad right now; otherwise, she’d be at work already.

5. It’s important for children to get a good early education; otherwise, they might have problems in school later on.

 6. She makes a good living from her artwork; otherwise, she would have to work on her family’s farm.

 7. Human beings have a responsibility to protect animals that are in danger of becoming extinct. We can not do otherwise.