5.Transform the sentences using the Passive Voice
1 I have told the chil- dren about the party.
2 We expect students not to talk during the examination.
3 You mustn't touch this button while the experiment is in progress.
4 You should keep the flowers in a warm sunny place,
5 You must clean this machine every time you use it.
6 They had to pay the bill before they left the hotel.

1 The children have been told about the party.

2 Students are expected not to talk during the examination.

3 This button mustn't be touched while the experiment is in progress.

4 The flowers should be kept in a warm sunny place.

5 This machine must be cleaned every time it is used.

6 The bill had to be paid before the hotel was left.