- Cấu trúc câu bị động thì hiện tại đơn: 

`(+):` S + is/are + Vp2 

`(-):` S + isn't/aren't Vp2

`(?):` Is/Are + S + Vp2

1. The car park is closed at night.

2. The Great Wall of China is visited by thousands of people every year.

3. Train tickets are sent by email. 

4. Books and magazines are sold at the airport. 

5. Bus timetables often be shown in the information center. 

6. Their mobile phones are turned off during flights by passengers.

Cấu trúc câu bị động thì hiện tại đơn: 

(+) S + is/are + V3

(-) S + isn't/aren't V3

(?) Is/Are + S + V3

1. The car park is closed at night  (chủ thể they không cần thiết)

2. The Great Wall of China is visited by thousands of people every year.

3. Train tickets are sent by email. (chủ thể they không cần thiết)

4. Books and magazines are sold at the airport. (chủ thể they không cần thiết)

5. Bus timetables often be shown in the information center. (chủ thể they không cần thiết)

6. Their mobile phones are turned off during flights by passengers.