HELP!Exercise 1. Change the following sentences from Active into Passive. Leave

HELP!
Exercise 1. Change the following sentences from Active into Passive. Leave out the doer of the action.

Model B: They discussed this problem at the meeting.
This problem was discussed at the meeting.

1.She delivered her report in English.
2.I asked him to come later.
3.They published one of his books last year.
4.He told us this story.
5.They promised him a leave.