The error is this sentence is a subject-verb agreement because the subject "the beaches" does not match the verb "is".
What is subject-verb agreement?
This is a general grammar rule that stabilish both the subject and verb should be either singular or plural.
What is the error in the sentence?
This sentence has a plural subject "beaches" along with a singular verb "is", which is grammatically incorrect. The corrected sentence is "The beaches around here is some of the prettiest I've ever seen!"
Learn more about verbs in: https://brainly.com/question/14574299
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