Помогите пожалуйста сделать, употребив пассивный залог

1 Medicine is taught at the Medical University.
2 Moscow was founded in 1147.
3 The first manned spaceship was launched into space in 1961.
4 The text hasn't been translated yet.
5 The letter must be sent later.
6 Coffee isn't served in all the long distance trains.

1) Medicine is taught at the medical university
2)Moscow was founded in 1147
3)the first mannued spaceship was launched in 1961
4)The text hasn't been translated yet.
5)the latter must be sent later
6)coffee isn't served in all the long distance trains