In "The Fly". what change does the poet mark by starting a new stanza at line 5?

A change from outward events to the speaker's inner thoughts

Explanation:

the answer is "began" because it is a action that can be done

the answer is:

when will (v) the books (n) be (v) due?

nouns refer to people (other than pronouns), places and things, whereas verbs describe actions and are usually part of the predicate of a sentence. finally, pronouns can work as nouns and identify the participants in speech.

in the example sentence, "will" is a verb part or auxiliary verb, "be" is an infinitive verb and "books" is a plural noun.