I have been able to fill the empty spaces with the correct answers.
We see the use of modal verbs in the sentences. Modal verbs are known to be auxiliary verbs that actually express the mood of another verb. These modal verbs are actually used to show possibility, speculation, deduction, prediction, etc.
I think the answer is: The narrator is dismissed by her superiors when she asks questions about an occurrence that my have been supernatural. I hope this helps.