Final answer:
The correct answer is 'had been living'.
Step-by-step explanation:
The correct answer to the question is had been living. The use of the past perfect progressive tense indicates that the action of living on the same street started before a specific point in the past and continued up until that point. In this case, the student lived on the same street for years, but only met their husband in 2009, indicating a continuous action in the past leading up to the meeting. The other options, such as 'lived' and 'was living', do not convey the necessary sense of continuous action.
Learn more about past perfect progressive tense