Answer:
Its--->are
Explanation:
Our sentence:
Books about archaeology is shelved at the end of this row, organized in
alphabetical order by the author's or editor's last name.
1. When you say books , you are speaking about plurarl. So, it must be ARE, not is.
2. I want to say its something about shelved, but I looked it up and it seemed correct.
The rest of the sentence seems fine imo, but it said specifically verbs, so thats whats throwing me off a bit.
Hope I could somewhat help!
