A flashback is a <u>narrative device by which a past event is described and inserted into the story, although it does not follow the chronological order of events</u>. The lines that are a flashback are the following:
<em>She thought of her last day in middle school, seven years ago, when Sarah had given her an iPod. She had felt ecstatic that day when she realized she would be able to listen to her favorite songs and fend off comments from her cousins about how little she knew about music.</em>
The answer is "me". There are two valid uses for I and me. The former is used as a "doer" pronoun, such as in the sentence, <em>I took Sandra with me to the movies.</em> The latter is used as an object pronoun, which is applicable in the case of <em>Sandra went to the movies with David and me.</em>
You have worked five years in technical support
I’m sure the answer is longing