Because dressing up in costumes once a year is a way many people can express themselves and their interests
The author used fragments, and long sentences with a variety of length and beginnings. He used such methods to create sentence fluency and rhythm in the passage through making the reader pause or 'rest' in between sentences - making emphasis on some lines and deeming it nice to listen to.
Answer:
1. These people are always kind and very helpful.
2. That's the man, officer! I saw him robbing the post office!
3. I can't read any of these books because it's so boring.
4. All of these cars are parked in the wrong place.
5. I like that music very much.
6. How many of these exercises did you get right?
7. These are the students who were in my class.
8. Not any of those countries agreed to the plan.
9. Stop making all of the noise at once!
10. Where did you get all of that money?
Explanation: