Unit 14 A computer is your friend.,friend,football,basketball,volleyball,computer,television,refrigerator,air-condition,video,Whats this?This is a computer.,Whats this?This is a football.,Whats this?This is an air-condition.,Is this your friend?Yes,a basketball is my friend.,Is this your friend?Yes,a computer is my friend.,Whats this?This is Is your friend?,Thank you !,