Answer:
Alexandra wants Atticus to fire Calpurnia
Explanation:
Alexandra believes that now that she is there, the family does not need Calpurnia anymore.
They use it to define African American.
Answer: 3. As I came in the front door, Eddie is going out the back door.
Explanation:
Came is a past-tense verb.
Is going is present tense.
While all of the other sentences feature a consistent verb tense (either present OR past tense), the sentence above is the only one that features a shift.