Question

Select a suitable verb option to complete the sentence:
Three days _____ long enough for a good holiday.

• A. isn't
  
• B. wasn't
• C. aren't
• D. weren't

Answer 1

Answer: (C)

aren't

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 C is correct as the subject is plural and the sentence states a fact.

The other options are wrong as the subject is not singular and the sentence is not in the past tense.