Перепишите предложения из активного залога в пассивный: 1)nobody has used this room for ages 2)we will give you the keys tomorow 3)someone is interviewing dr johnson at hte moment 4)by the time i arrived, someone had already opened all your letters 5)when usually talk briefly about the problems of the family at dinner time )

This room hasn't been used for ages. 
The keys will be given you tomorrow.
Dr Johnson is being interviewing by someone at the moment.
By the time I arrived, all your letters had already been  opened.
The problems of the family are usually talked about briefly by us at dinner time