The fragment that is made up of a complete predicate is option A. "could not be heard above the voices in the hallway"
In grammar, the predicate is defined as the part of the sentence that contains the verb and gives information about the subject.
Option A is the only option that contains a verb, in this case "could" and it is providing information about a subject we don´t know. The only options lack verbs,
Native Americans came over 1st B
The first line, because dialect in literature means a form of writing that shows the accent and way people talk. Because of the definition where it says “might ‘a’ thought” is dialect.
NO maturity does not depend on age people that are like 20 can act childish and 12-15 can act just like adults