What does the adverb answer in this sentence As a twelve year Gibson was big strong and completely fearless what is sentence?

The sentence "As a twelve year old, Gibson was big, strong, and completely fearless" doesn't have an adverb answering the question "what".

Here's why:

* Adverbs describe verbs, adjectives, or other adverbs. In this sentence, "completely" is the only adverb, and it modifies the adjective "fearless."

* The sentence describes Gibson's physical attributes and personality. It tells us *what* Gibson was like, not *how* he was like that.

Let me know if you'd like me to explain a different aspect of the sentence!