C) have + been + verb + -ing.
Answer:D
Explanation:The author's tone towards the subject is the viewpoint on the matter. Through the author's tone we are given a glimpse of the author's feelings and train of thought. The tone may be formal or informal,sad or cheerful,optimistic or ominous.
The tone plays an important role in providing meaning to the tension that has been set by the author.
The phrase that indicated a lost in thought feel is the "Midnight shakes the memory". It means that his train of thought is going double time in the dark or at night.
All of the above for question 3 and for 6 i think its the first 3