Read the lines from Act I, scene v of Romeo and Juliet.

Juliet: Then have my lips the sin that they have took.

Romeo: Sin from my lips? O trespass sweetly urg’d!
Give me my sin again.

Juliet: You kiss by the book.

Shakespeare uses the structure of these lines to

explain the great differences between feuding families.
demonstrate the playful affection of a new relationship.
persuade readers that kissing is sinful behavior.
contrast Romeo’s impulsiveness with Juliet’s calm.