A participle has the following form: verb + -ing, and the only word in this sentence that takes that form is A, 'flying', which is the correct answer.
Answer:
I am writing to let you know what I am doing this week. I just got back from the Cheese Rolling Race in Gloucestershire, England. It was a strange experience but fun!
Explanation:
Sorry but I am not sure about the last question.
To entertain. The books are literally a fantasy series. I suppose it also helped her through her depression and such, but her actual purpose was to entertain and teach some morals suck as the importance of friendship.