Final answer:
The sentence should have commas added for correct punctuation. The correct version is 'Homer Simpson challenged me to an arm-wrestling match, and, wow, was I nervous!'
Step-by-step explanation:
The sentence should have commas added for correct punctuation. The correct version would be:
Homer Simpson challenged me to an arm-wrestling match, and, wow, was I nervous!
The use of commas in this sentence helps to separate the different parts of the sentence. The first comma is used before the coordinating conjunction 'and' to separate two independent clauses. The second comma is used to set off the interjection 'wow' to add emphasis to the speaker's feeling of nervousness.
Learn more about Punctuation in English sentences