1. Letters are written by Sam every day.
2. Fast food was invented by the Americans.
3. Many towns were destroyed by the storm.
4. A new dress will be sewn by my mother.
5. The helicopter was invented by Leonardo da Vinchi.
6. The best cake is made by me.
7. My hair will be cut by my sister.
1. A new ring road is being built by them.
2. Books were being read by them from 10 to 11 yesterday.
3. The rooms are being cleaned at the moment.
4. The problem was being discussed the whole day yesterday.
5. The truth is being told me by him at the moment.
1. The book has already been read by me.
2. The letter had been written when he came.
3. The house has been built by them recently.
4. The truth will have been told him when he comes.
5. The letter will have been written me by him by Monday.