Final answer:
The sentence "Which bowling ball did Tamatoa use to get that strike?" is a fragment. It is missing a subject.
Step-by-step explanation:
The sentence "Which bowling ball did Tamatoa use to get that strike?" is a fragment.
A fragment is an incomplete sentence that lacks either a subject or a predicate. In this case, the subject is missing because it does not clearly identify who or what used the bowling ball. To make it a complete sentence, you could rephrase it as "Tamatoa used that bowling ball to get the strike."