Put the verb in brackets into the correct form of the Past Simple Passive. (Поставь глагол в скобках в нужную форму простого прошедшего времени в пассивном залоге.)

1. These books
very quickly. (to sell out)
2. The letters
to Paris by mistake. (to post)
3. How much water
? (to pollute)
4. The door
by a man. (to open)
помогите пожалуйста