change the following sentence into passive voice...
1.- Smoking has been forbidden on the campus by the principal.
2.- the students have been forbidden to smoke on the campus by the principal.
3.- he is being advised to consult a good doctor by me.
4.- he is advised to consult a good doctor by me.
5.-parking is not allowed in front of their gate by them.
6.- people are not allowed to park in front of their gate by them.
7.- early booking is advised by them.
8.- passengers are advised to book their tickets early by them.
9.- she was made to repeat the whole story by them.
2.- the students have been forbidden to smoke on the campus by the principal.
3.- he is being advised to consult a good doctor by me.
4.- he is advised to consult a good doctor by me.
5.-parking is not allowed in front of their gate by them.
6.- people are not allowed to park in front of their gate by them.
7.- early booking is advised by them.
8.- passengers are advised to book their tickets early by them.
9.- she was made to repeat the whole story by them.