Answer:
Dashes can be used in several ways:
1. To set off a phrase or clause that adds emphasis, explanation or clarification to a sentence, e.g., "I have two goals – to finish college and to find a job."
2. To indicate a sudden break or interruption in thought, e.g., "I was on my way to the store – oh, I forgot my wallet!"
3. To set off a list or examples, e.g., "The project requires the following skills – leadership, communication, and critical thinking."
4. To indicate an abrupt change in tone or direction, e.g., "I love to travel – but I hate packing and unpacking."
It is important to use dashes sparingly and appropriately to avoid overuse and confusion.