Final answer:
The sentence contains an error, and the correct change is to replace "eager" with "eagerly".
Step-by-step explanation:
The sentence "Kristen eager plays basketball with her friends in the early evenings" contains an error. The word "eager" should be changed to "eagerly" to correctly modify the verb "plays." In this context, "eagerly" is an adverb that describes how Kristen plays basketball. Therefore, the correct change to make is Change eager to eagerly.
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