Final answer:
The error in the given sentence is a misplaced modifier.
Step-by-step explanation:
The error in the given sentence is a misplaced modifier. A misplaced modifier occurs when a word or phrase is not placed close enough to the word it is supposed to modify, causing confusion or ambiguity. In this case, the modifier 'At the age of five' should be placed closer to the word it is modifying, which is 'my family' or 'we'. Here's a corrected version: 'My family, at the age of five, finally bought a car.'
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