The impostor eluded detection for so long because she conducted herself as though she were a licensed practitioner.
The sentence is correct because we change was to were in situations that are counter to fact or highly unlikely.
940 MCQ for effective preparation of the test of Verb and Tenses of English Grammar section.
Read the MCQ statement: The impostor eluded detection for so long because she conducted herself as though she were a licensed practitioner., keenly and apply the method you have learn through the video lessons for Verb and Tenses to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 835-5114.