Final answer:
The correct word to fill in the blank is 'mejores'.
Step-by-step explanation:
The correct word to fill in the blank in the given sentence is mejores.
The sentence translates to: 'Fruits are better than french fries.'
Here, 'frutas' (fruits) is the subject of the sentence and 'mejores' (better) is the adjective that agrees with the subject in gender and number. Since 'frutas' is plural, the adjective also needs to be in its plural form, which is 'mejores'.
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