Reference librarians are specially trained to help patrons perform research tasks and duties, such as finding certain items and pointing them in good research directions.
The predicate adjective here is "refreshing".
A predicate adjective is the word that modifies the subject of a sentence (and is an adjective). So for example subject is x, or subject looks x with the x as the predicate adjective
Shaping the writing is the correct answer.
clause- a group of words that includes a subject and a verb.
convention- a widely accepted usage or way of thinkingphrase-<span> a group of words that make up part of a sentence
</span>synrax- the arrangement of words or phrases in a sentence
I think it's A. I'm not 100% sure.
