`4.` Many famous films are made in Hollywood.

`-` Bị động thì HTD 

`-` Cấu trúc: S + am/is/are + VpII + (by + O) + time. 

`5.` Our English lessons are taught by Ms. Linh.

`6.` All of us are driven to school by my father every day.

`7.` Cell phones are used by a lot of people.

`8.` My town is visited by hundreds of tourists every year.

`9.` Khue Van Pavillion symbol is used on all street signs of Ha Noi. 

`10.` The imperial Academy was built as the first university in Viet Nam by King Ly Nhanh Tong in `1076.` 

`-` Bị động thì QKD

`-` Cấu trúc: S + was/were + VpII + (by + O) + time. 

`-` Chủ ngữ câu chủ động là các chủ ngữ như: đại từ nhân xưng, bất định: anyone, someone,... people,..`->` Chuyển sang câu chủ động có thể ko thêm (by + O) 

4. Many famous films are made in Hollywood.

5. Our English lessons ảe taught by Ms Linh.

6. All of us are driven to school by my father every day.

7. Cell phones are used.

8. My town is visited every year.

9. Khue Van Pavillion symbol is used on all street signs of Ha Noi.

10. The Imperial Academy was built as the first university in VN in 1076 by King Ly Nhan Tong.

___________________________________________________________________________

PASSIVE VOICE:

 - Thì Hiện tại đơn: S (tân ngữ) + is/am/are +V-pp + by... (chủ ngữ)

 - Thì Quá khứ đơn: S (tân ngữ) + was/were + V-pp + by... (chủ ngữ)

Đối với một số chủ ngữ mơ hồ (không cụ thể) như: People, She, He, They, We, đại từ bất định,... thì không cần "by..."