Forgive me, as I have a STEM background and really have no clue when it comes to grammar. We seem to have run into a disagreement over parts of speech labeling between MCT Grammar Town and Fix-It Grammar 1, and I don't know what's right or if they're both right or if I'm looking at it wrong or what.
1) It was his.
2) It was his cake.
By the explanation from MCT, in sentence #1 "his" is a possessive pronoun because it stands alone in place of a noun, but in sentence #2 "his" is a possessive adjective because it's used to modify a noun.
In Fix-It, we had the same set up as in #2 above, but the TM calls "his" a pronoun.
To further confuse me, we read Grammar-Land a while back and I remember them calling "his" pronoun in sentences like #1 and an adjective-pronoun in those like #2.
So... in sentence #2, is "his" a possessive adjective, a possessive pronoun, plain 'ol pronoun, or adjective-pronoun?