A-It's their parents' computer
B-It's their parents's computer
A-
A-It's their parents's mobile phones
B-They are their parents' mobile phones
B
A-It's the sister's watch
B-It's the sister' watch
A
A-It's the brother's skateboard.
B-They are the brother's skateboard
A
A-It's the sister's rollerblades
B-They are the sister' rollerblades
C-They are the sister's rollerblades
C
A-It is the parents' books
B-They are the parents' books
C-They are the parents's books
B
A-It is the brother's bike
B-They are the brother's bike
C- It is the brother' bike
A
A-It is the parents' camera
B-It is the parents's camera
C-They are the parents' camera
A
