the action of introducing something

How can miscommunication cause a tragedy?

What's liza's problem? she wants her old life back. she's afraid she'll have to return to her old life. she doesn't want to appear ungrateful for what higgens gave her. she wants to be independent.

What makes this part of the anecdote about elisa effective? when [elisa] finally walks home, after seven hours of standing at a cash register, her feet hurt. she's wiped out. it makes the reader trust the author as an authority on teenage issues. it uses emotional language to the reader experience elisa's daily challenges. it presents facts to support the long hours elisa is required to work.