Question

fix any punctuation or capitalization errors below. click \submit answer\ if there are none.
megatron volunteered to crawl into the tunnel first, i was too afraid.

Explanation:

The original sentence has two independent clauses ("Megatron volunteered to crawl into the tunnel first" and "I was too afraid") joined by a comma, which is incorrect. A semicolon should be used to separate two independent clauses that are related in meaning. So we replace the comma after "first" with a semicolon.

Answer:

Megatron volunteered to crawl into the tunnel first; I was too afraid.