Who is it?

2. My initials can stand for a special day in the younger grades.
5. My initials create the first name of someone in 4B.
7. My initials make the name of an old brand of cola.
8. My last has the same short word at the end like Mr. C.
9. My initials are what you are left with after the emoji that is unenthused drops the first letter in its name.
10. I am is the contraction broken up.
11. I was new to 4D a fews months ago.
12. I have the same initials as my older sister.
15. Ms. Moore in 4A has a very similar first name.
17. A combination of a line segment and a line in a way.
19. My initials are the abbreviation for a kilometer.
20. Is it right? Well, come on down! (Maybe you will get to spin the wheel).
21. I am the singular form of what some fourth graders have for teeth.
23. Like Maddex in 4A, I better not forget my first and last initials.

1. Third as a first name but first in terms of age.
3. My last name is what you might find in a barber shop.
4. I was a part of 4D for about half of the year.
6. My initials warn people of a crossing.
8. My initials make up one of Mr. C's favorite kinds of pop.
13. The Equality State.
14. Best dressed... for success. Go Reds!
15. My last is the name of a luxury car.
16. A couple of my cousins and an older brother of mine had Mr. C as a teacher.
18. It will be hard to find many first names that come after mine in ABC order.
19. My initials could be a girl's first name.
22. May I draw high on the board? No, but you...