Answer:
D.) have+verb=ing
Explanation:
The present perfect tense is used to explain something that happened in the past and continues to happen
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.
Because his is demented why would you not enroll to oxford!?
I read early in the morning is the correct answer