Переработать предложения в Пассивный залог. 1. May I send the letter

1. May I send the letter to your address? May the letter to your address be sent by me?
2. By mid-October we had planted all the trees. All the trees had been planted by us by mid-October.
3. The teacher dictated a short poem to us. A short poem was dictated to us by the teacher.
4. They are translating an article now. An article is being translated by them now.
5. I told him that I should have answered the letter by ten oclock. He was told that the letter would have been answered by me by ten oclock.