Đáp án: 

1. The door is opened by him. 

2. The table is set by us. 

3. A lot of money is paid. 

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. 

9. Are you picked up by your mother? 

10. Is the thief caught by the police officer? 

Phương pháp giải: 

Trên đây toàn câu bị động ở thì Hiện tại đơn. 

S + is/are/am + P2 + ... 

S + isn't/aren't/am + P2 + ...

Is/Are/Am + S + P2 + ...?

1. He opens the door.

⇒ The door is opened by him

2. We set the table.

⇒ The table is set by us

3. She pays a lot of money.

⇒ A lot of money is paid by her

4. I draw a picture.

⇒ A picture is drawn by me

5. They wear blue shoes

⇒ Blue shoes is worn by them

6. They don't help you.

⇒ You aren't helped by them

7. He doesn't open the book.

⇒ The book isn't opened by him

8. You do not write the letter.

⇒ The letter isn't written

9. Does your mum pick you up?

⇒ Are you picked up by your mum ?

10. Does the police officer catch the thief ?

⇒  Is thief caught by the police?