change these sentences into passive forms
1 We are doing our homework in the room
Our homework is being done in the room.
2 He'll solve the problem soon
The problem will be solved by him soon.
3 He is writting a book on biology
A book on biology is being written by him.
4 The teacher is explaining the lesson to the students
The lesson is being explained to the students by the teacher.
5 They don't teach French in this school
French isn't taught in this school.