Здравствуйте, помогите решить третий номер. Награда как видите крупная, от меня большая благодарность

1.       will be accepted 2.       was opened Задание 2 passive voice    -   is completed active voice  -  completes Задание 3 1.      The play was written  by the author. 2.      The letters are being typed by the secretary. 3.      Your opinion had been changed by you. 4.      Chess will be played by the children.