Tybalt is Juliet's cousin, originally, Tybalt wanted to duel Romeo instead. But since he and Juliet are married, he cannot fight Tybalt as he is basically his cousin-in-law, thus, Romeo rejects Tybalt's challenge. Mercutio finds this quite cowardly as a result he himself challenges Tybalt to fight.
Answer: he has manners and knows how to behave
Explanation:
You could define what a drug test is
<span>The word best describes the tone of the “Address at Rice University on the Nation's Space Effort is "personal"</span>
