Question

fix any punctuation or capitalization errors below. click \submit answer\ if there are none.
tom wachowski spent three hours looking for his car keys before i found them with a metal detector.

Explanation:

The sentence has correct capitalization (proper noun "Tom Wachowski" is capitalized, and the first word of the sentence is capitalized) and proper punctuation (a single, appropriate period at the end, with no missing or incorrect internal punctuation).

Answer:

Tom Wachowski spent three hours looking for his car keys before I found them with a metal detector.