Change these sentences into the passive.
MODEL: Someone's interviewing Dr Jonhson at the moment. - Dr Jonhson is being interviewed at the moment.
1) They don't allow smoking at this restaurant.
2) You should pay your bill before you leave the hotel.
3) I have told the children about the party.
4) About thirty million people are watching this programme.
5) We expect students not to talk during the examination.
6) You mustn't touch this button while the experiment is in progress.
7) Someone will blow a whistle if there's an emergency.
8) You should keep flowers in a warm sunny place.
9) Someone has moved my chair.
10) The police are questioning Mr and Mrs Davidson.
11) They invited two hundred people to the wedding.

1) Smoking isn't allowed at this restaurant. 2) Your bill should be paid before you leave the hotel. 3) The children have been told about the party. 4) This programme is being watched by about thirty million people. 5) Students are expected not to talk during the examination. 6) This button mustn't be touched while the experiment is in progress. 7) A whistle will be blown if there's an emergency. 8) Flowers should be kept in a warm sunny place. 9) My chair has been moved by someone. 10) Mr and Mrs Davidson are being questioned by the police. 11) Two hundred people were invited to the wedding.