Final answer:
The sentence that is foreshadowing is sentence 1, foreshadowing something tragic in the narrator's past.
Step-by-step explanation:
The sentence from the excerpt that is foreshadowing is sentence 1. This sentence foreshadows that something tragic happened to the narrator in the distant past. The use of words like 'strange,' 'summer has long since fled,' and 'time has had its way' suggests that the narrator experienced something significant and possibly negative in the past, setting the stage for a tragic event.
Learn more about foreshadowing in literature