Помогите пожалуйста с упражнением 9.1, буду очень благодарен)

1) were returned 2) will be being exhibited 3) has not done 4) is being taken, will be being operated 5) is used 6) have been told 7) was not read, was not cut 8) be used 9) are carried out, were not carried out 10) was returned 11) are built 12) has not been used