Answer:
21. C- Member
22. B- Why
23. A- Are
24. A- Go
25. B- Will study
26. B- Drives
27. B- Fewer
28. A- Does she listen
29. C- Yes, I do
30. C- With
31. D- Many
32. A- More comfortable
33. D- What an amazing book!
34. D- At / Of
35. I don't understand the way you asked that question sorry if you could rephrase it I may be able to help.
36. C- On.
37. C- On
38. D- To learn
39. A- The most
40. D- Busily.
Hope that helps. x