1. Tower Bridge is situated on the River Thames

2. Many famous London landmarks are seen from the bridge.

3. Tower Bridge is visited by more than 380,000 tourists every year.

4. Tickets are sold on the Internet.

( Vì tất cả các câu trên ở thì hiện tại đơn ( Simple Present Passive ) nên ta có : 

Cấu trúc:

(+) S + am/ is/ are + PII + (by O) ....

(-) S + am/ is/ are + not + PII + (by O) ....

(?) (...) Am/ Is/ Are + S + PII + (by O) ... ?

Simple Present Passive: Câu bị động ở thì hiện tại đơn

Cấu trúc:

(+) S + am/ is/ are + PII + (by O) ....

(-) S + am/ is/ are + not + PII + (by O) ....

(?) (...) Am/ Is/ Are + S + PII + (by O) ... ?

1. Tower Bridge is situated on the River Thames

2. Many famous London landmarks are seen from the bridge.

3. Tower Bridge is visited by more than 380,000 tourists every year.

4. Tickets are sold on the Internet.