Final answer:
The correct completion of the sentence is 'me gusta'.
Step-by-step explanation:
The correct completion of the sentence is me gusta.
In Spanish, the subject pronoun 'a mí' indicates that the speaker is expressing their own preference. Since 'fútbol americano' is a singular noun, we use the singular form of the verb, which is 'gusta'.
For example, 'A mí no me gusta la temporada de fútbol americano' means 'I don't like the football season'.
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