Question

fix any punctuation or capitalization errors below. click \submit answer\ if there are none.
frank sinatra spent five hours at the zoo, gazing at the sloths as they climbed a tree.

Explanation:

The sentence "Frank Sinatra spent five hours at the zoo, gazing at the sloths as they climbed a tree." has correct punctuation (a comma to separate the introductory part and the main action, and a period at the end) and capitalization (proper noun "Frank Sinatra" is capitalized correctly, and the start of the sentence is capitalized). So no changes are needed.

Answer:

Submit answer (as there are no punctuation or capitalization errors in the given sentence).