I am feeling slightly stupid here as I'm having trouble working out some of my son's grade two school work.

Please help!
I know what a possesive adjective is but the question is:
"Choose a noun for each possessive adjective"
my________
your______
his_______
her_______
and so on.
Would they mean PROnouns perhaps?
so my = I
your = you
his= he
or is it my = mine?
I dunno but the more I look at it the more confused I get!
(I have sent an email to his teacher but it could be a while to get a response .. you guys are much faster!)