Remember that pronouns always take the place of the noun and everything that goes with the noun. The possessive pronouns (mine, yours, his, hers, its, ours, theirs) are used instead of the possessive + noun to indicate possession. Let's see some examples:
That car is my car -----> that car is mine
This book is Mary's book -----> this book is hers
And, of course, some exercises for you to practise!!!
Exercise 1 Complete the sentences with a possessive pronoun
Exercise 2 Change the sentences so that they have a possessive pronoun. There is an example.
Exercise 3 Complete the sentences with a possessive pronoun
Exercise 4 Choose the correct answer
Exercise 5 Complete the sentences
Exercise 6 Complete the sentences according to the person in brackets.