Fill in the blank with the most appropriate word.
_______ you wash it yesterday?
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 you and yesterday indicates past tense.
The other options are wrong as the question indicates past tense.
The correct answer is C)Did