Answer:
state
Explanation:
The verb stare here is used to ask someone how they are. It's forms are:
io (I) sto
tu (you) stai
lui/lei (he/she) sta
noi (we) stiamo
voi (you) state
loro (they) stanno
In your example there are two people (Paolo and Giovanni). So you're looking for a form of this verb following voi (being an equivalent of English plural you). So the sentence will be Paolo e Giovanni, come state? which means Paolo and Giovanni, how are you?
