_____ aquí. Venir Venga Vengas Vens
Answer : ¡Venga aquí!
Explanation : The implicit subject in this sentence is "Usted", the formal second person in Spanish, so the entire sentence would be "Venga usted aquí", that is the imperative mode of the verb "venir", that it is admitted without a explicit subject, because in Spanish, the conjugation form, indicates the subject. "¡Venga aquí!" that means You, come here!
That is a command.