Here are the suggested answers based on the context of the sentences:

13. A. media
14. C. go
15. D. pressure
16. C. calm
17. D. pressure
18. C. social
19. C. join
20. A. focus
21. A. on
22. D. so
23. B. or
24. A. and
25. A. but
26. B. because
27. A. and
28. A. so

If you need any further assistance or explanation, feel free to ask!