Теория:

Study the information about possessive pronouns and adjectives.
 
Possessive pronouns and adjectives are two different ways to show possession. Possessive Adjectives are used in this order:
 
Possessive Adjective + Noun
 
Examples:
 
Our office is big.
  
The-Office-Rivington-Street-Office-Space-940x407.jpg
 
My flat is small but cosy.

Possessive Pronouns are used in this order:
 
Noun  +  Possessive Pronoun
 
Examples:

The bag is mine.  
370830_A7M0N_6523_002_089_0000_Light-Bamboo-Daily-leather-top-handle-bag.jpg
The shop is his.

Possessive adjectives go before the noun and possessive pronouns go after the noun. Here are some examples:       
 
This is my computer.
The car is mine.
  
open_road.jpg
 
Here is a list of the possessive adjectives and possessive pronouns:
 
Possessive adjectivesPossessive pronouns
mymine
youryours
hishis
herhers
itsits
ourours
theirtheirs
Источники:
www.theofficegroup.co.uk
www.gucci.com
www.carmax.com