Respuesta :
“A plague o' both your houses! 'Zounds, a dog, a rat, a mouse, a a cat, to scratch a man to death! A braggart, a rogue a villain, that fights by the book of arithmetic! Why the devil came you between us? I was hurt under your arm.”
The answer is:
MERCUTIO: Help me into some house, Benvolio,
Or I shall faint. A plague o' both your houses!
They have made worms' meat of me: I have it,
And soundly too: your houses!
This is because he says, "your houses," when addressing who had killed him.