Question

fix any punctuation or capitalization errors below. click \submit answer\ if there are none. sheldon plankton wondered if \those mean zookeepers\ would ever buy the iguanas a new cage.

Explanation:

The double - quotes inside the sentence should be single quotes as they are nested within the main sentence's double - quotes.

Answer:

Sheldon Plankton wondered if 'those mean zookeepers' would ever buy the iguanas a new cage.