Answer:
31. c- must
32. b- might
33. a- might be
34. d- can't have been
35. a- might
36. d- advice
37. a- must have
38. b- must have been
39. b- can't have missed
40. d- might have
Explanation:
Sorry if I get any of these wrong- the wording can be tricky sometimes lol :) I hope this is helpful! Have a lovely day!!
