Помогите Безотлагательно .Действительный и страдательный залог.Active to passive voice.When did you

Active to passive voice.1.We must postpone the match.3.They have promised me some books on this problem.4.Nobody has told me the news yet.5.They will take the children for a walk .6.They sent you the invitation last week.7.They are discussing that problem now.8.Someone gave him a dictionary as a birthday present9.They have just shown me a new magazine.

10.People speak much of him.12.The professor is examining the students now.13.They have already reconstructed the building.15.They won't invite us.16. When they heard about the accident they sent for a doctor immediately.17.Nobody has ever spoken to me in such a way 18.Somebody has invited her to the party.19.No one has seen him anywhere this week.20.She must do all the exercises in written form.

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1. The match must be postponed 2. I've been promised some books on this problem 3. The news hasn't been told yet 4. The children will be taken for a walk 5. The invitation was sent last week 6. That problem is being discussed now 7. He was given a dictionary as a birthday present 8. A new magazine has just been shown to me

10. He's much spoken of 11. The students are being examined now 12. The building has already been reconstructed 13. We won't be invited by them 14. When it was heard about the accident, the doctor was sent for immediately 15. I've never been spoken to in such a way 16. She's been invited to the party 17. He hasn't been seen by anyone this week 18. All the exercises must be done in a written form

Thank you very very much