Border Patrol Practice Exam - Practice Test, Study Guide & Prep

The phrase "She will have taken" is expressed in the active voice because the subject "She" is performing the action of the verb "have taken." In this structure, the focus is on the subject who is actively completing the action. The active voice is characterized by a clear and direct relationship between the subject and the verb, where the subject actively engages in the action rather than being acted upon.

Regarding the other choices, the passive voice would be evident if the structure indicated that the subject is receiving the action rather than performing it, which is not the case here. Similarly, the phrase is not neutral or lacking in voice; it clearly conveys an action directed by the subject. Thus, the phrasing aligns with the characteristics of the active voice.