1. She saw the accident and stopped her car immediately.  
   → Seeing the accident, she stopped her car immediately.

2. He had a heavy workload, so he couldn't attend the meeting.  
   → Having a heavy workload, he couldn't attend the meeting.

3. I cannot go to the movies with you because I have an assignment to finish.  
   → Having an assignment to finish, I cannot go to the movies with you.

4. When my sister hears the bad news, she will burst into tears.  
   → My sister, hearing the bad news, will burst into tears.

5. Because I didn't study hard enough for the exam, I couldn't pass it.  
   → Not studying hard enough for the exam, I couldn't pass it.

6. Franky knew Sophia loved reading, so he bought her a book.  
   → Knowing Sophia loved reading, Franky bought her a book.

7. I lost my keys while walking along the beach.  
   → I lost my keys walking along the beach.

8. My dad gets to meet a lot of foreigners because he works as a tour guide.  
   → Working as a tour guide, my dad gets to meet a lot of foreigners.

9. The person sitting in the corner is my cousin.  
   → The person who is sitting in the corner is my cousin.

10. When I broke the vase, they all looked at me and made me embarrassed.  
    → Breaking the vase, I made them all look at me, which embarrassed me.

11. The Harry Potter books, written by JK Rowling, have all been made into films.  
    → Written by JK Rowling, the Harry Potter books have all been made into films.

12. Because she was blinded by the sun, she didn't see the boy crossing the road.  
    → Blinded by the sun, she didn't see the boy crossing the road.

13. If participles are used in this way, they can make your writing more concise.  
    → Using participles in this way can make your writing more concise.