Fill in the blank with the most suitable verb:
________ you having a holiday soon?
A verb is used to express an occurrence, action, or state. It is the grammatical centre of the predicate in a sentence.
An auxiliary verb is a verb which gives is used in the formation of tenses, moods, tones, etc.
Option D is correct as soon indicates the use of present continuous tense. Also, have (having) is used as the main verb here.
The other options are wrong as no other tense other than present continuous tense can be used.
The correct answer is D)are