'Mine' 和 'yours' 是物主代词。

'Mine' and 'yours' are ___possessive pronouns.

单词 'his' 是一个物主形容词。

The word 'his' is a ___possessive adjective.

'dog' 的物主格是 'dog's'。

The ___possessive case of 'dog' is 'dog's'.