Final answer:
The word 'sentimental' is the best choice to complete the sentence.
Step-by-step explanation:
The best word to complete the sentence is sentimental. When looking back on high school memories, feeling sentimental means experiencing emotions of fondness, nostalgia, or reflection. The word 'amorous' means having or showing strong feelings of attraction or love, which does not fit the context of the sentence. 'Amiable' means friendly or likable and 'euphonious' refers to sounds that are pleasing to the ear, neither of which accurately describe Jeremiah's feelings while reminiscing about high school.
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