Here are the sentences transformed into passive voice:

1. Clothes are being ironed by Mai in the bedroom at the moment.

2. Two reports have been written by the manager so far.

3. The man was found by the police in the forest yesterday.

4. A new house is going to be bought by us next month.

5. A parcel was being sent by Tom to his parents then.

6. The rubbish is put out by my sister every day.

7. Is the dog taken to the beach by his mother in the morning?

8. Has all the letter been read by him before?