Your classes

(a)  

My mother

(a)  

My parents

(a)  

Her book

(a)  

their teachers

(a)  

our notebooks

(a)  

Our grandmother

(a)  

My photos

(a)  

Our chairs

(a)  

their suitcase

(a)  

their suitcases

(a)  

His girlfriend

(a)  

Our family

(a)  

our sisters

(a)