Is this sentence a complete sentence, run-on-sentence or sentence fragment? At this point the screws were removed, along with the plate, and placed on the back table.

Question

anonymous · Answer

the screws were removed and placed on the back table = core sentence (single subject, compound predicate)

At this point = introductory phrase (form: prepositional phrase)

along with the plate = additional phrase (form: prepositional phrase)

This is a single sentence, with a compound predicate. A "compound predicate" is just two main verbs or verb phrases joined with an "and."

anonymous · Answer

This is a complete sentence.