Нужно преобразовать в пассивный залог. Пожалуйста!!!!!!!!!!!!!! ​

1)Russian language is spoken by millions of people around the world
2)the window was opened by my dad 5 minutes ago
3)the room is cleaned every morning by them
4) new book will be published next year by them
5) Misha’s letter was sent to his granny a week ago
6) the first metro station was built 100 years ago
7) German and French is etched by young teachers in Mary’s school
8) students will be asked by their teacher at the math lesson tomorrow