Explanation:
Faber wants to begin reading the Book of Job to Montag since this fictional tale of Job parallels Montag's experience and quest for meaning. To measure Job's fidelity, God would allow the demon to hurt him, strip away his earthly possessions, and sometimes even destroy his parents and siblings in the biblical tale of Job.
The soldiers have had enough from Mother and Parvana, so they tear Father's photograph and start hitting Mother with a stick; shortly after, they beat Parvana as well. Mother is beaten to the ground and Parvana tells the soldiers to back off, that they will leave.
<em>Since you've been gone</em> is the subordinate clause.
The word since is a subordinate conjunction, and the rest of it is the subject (you) and been gone is a very phrase for the subordinate clause.
you've been gone explained above.
finished the book is the predicate of the main clause. finished is a verb and the book is the object.
A preposition phrase is a modifying phrase consisting of a preposition and its object