Final answer:
Roxanne sets a trap for Christian to test his love for her. Cyrano knows Christian will fail the test and tries to have him express genuine emotions.
Step-by-step explanation:
In Cyrano de Bergerac, Roxanne sets a trap for Christian by asking him to recite sweet messages to her. She does this to test if Christian truly loves her or if he is just using flowery language with no substance. Cyrano, who is in love with Roxanne himself, says "good" because he knows that Christian will not be able to fulfill Roxanne's expectations and will ultimately fail the test. Cyrano tries to have Christian speak from his heart and express genuine emotions instead of relying on empty words.