Fill in the blank with the most appropriate word.
Sometimes we ____________ cards.
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 sometimes indicates the use of present simple tense.
The other options are wrong as the subject is not singular. Therefore, plays cannot be used. Also, playing and to play cannot be used as sometimes indicates that we are talking about something general.
The correct answer is C)play