Below are some examples and rules to help you understand how to use commas correctly in sentences.
Below are sentences related to the history of dogs as pets. Your task is to correct each sentence by:
1. The dog is believed to have been domesticated thousands of years ago they were first used as hunting companions.
2. In ancient times dogs lived in packs and were useful in many ways including protecting humans.
3. Dogs began to be bred for specific purposes such as guarding herds, guarding homes, and pulling sleds, they became more domesticated.
4. People domesticated dogs, as early as 15,000 years ago they helped early humans hunt.
5. Dogs who are known to be loyal companions, can also help in therapy, and they assist people with disabilities.
6. Today dogs are considered part of the family in many cultures because of their long history as pets and workers.
7. While some dogs were bred for herding others were bred for protection.
8. The first evidence of domesticated dogs dates back to around 12,000 years ago but there is also evidence suggesting they were tamed much earlier.
9. Dogs are still used for work in many parts of the world especially in rural areas.
10. Dogs have evolved alongside humans they have adapted to living in a wide variety of environments.