1. Yori, Bob, and I enjoyed watching the rodeo last Sunday.
2. C.
3. C.
4. C.
5. Several teachers volunteered to cook, to serve, and to clean up after the dinner.
6. The bus drove through Arkansas, through Oklahoma, and across Texas.
7. C
8. Someone extinguished the campfire, covered it with sand, and drenched it with water.
9. C
10. The Japanese gymnast was young, strong, and graceful.
11. C
12. Hard work, dedication, and funding have made our project a success.
13. C
14. The clerk needs to know who you are, where you live, and when you moved here.
15. We need new erasers and more chalk (No comma needed).
16. C
17. C
18. The horse had a long blonde mane (No comma).
19. In this river, you can fish for bass, trout, or sunfish.
20. Where is a store that sells televisions, surge protectors, and adapters?
Good luck on your assignment/test! I hope I’m correct. :))