Обратите каждое высказывание в пассивный залог
I had cleaned all the windows before the storm.
A workman will repair the computer tomorrow.
By next year the students will have studied the passive.
He must give the message to the right person.
Помогите пожалуйста,буду очень благодарен!!!

Спасибо большое!!!)

не за что

all the Windows had been cleaned before the stormthe computer will be repaired tomorrowthe passive will have been studied by the next yearthe message should be given to the right person