The verb used in the sentence is "go". In simple past, the conjugation for this verb is "went". Also, according to the subject (Eunice) if the verb were being used in present, it should be "goes". As known, the past participle form of "go" is "gone", making the first option the correct one. In spite of the name of the tense (present participle), it could refer to the present, past, or future (apparently, this sentence is in present continuous, but it could also express a future idea).
