Câu trả lời:
1. The door is opened by him.
2. The table is set by us.
3. A lot of money is paid by her.
4. A picture is drawn by me.
5. Blue shoes are worn by them.
6. You aren't helped by them.
7. The book isn't opened by him.
8. The letter isn't written by you.
Cấu trúc:
Thì hiện tại đơn: S + be + V3 (+ by Sb/ O)