`a.` Tom has been operated by Mary since `10` o'clock.

`-` Bị động HTHT: S `+` have/has (not) `+` been `+` PII `+` (by O)

`b.` This street wasn't swept last week.

`-` Bị động QKĐ: S `+` was/were (not) `+` PII `+` (by O)

`c.` Two poems were being written by tom.

`-` Bị động QKTD: S `+` was/were (not) `+` being `+` PII `+` (by O)

`d.` Her dog is often taken for a walk.

`-` Bị động HTĐ: S `+` am/is/are (not) `+` PII `+` (by O)

`f.` The book had been returned to the library by Kathy.

`-` Bị động QKHT: S `+` had (not) `+` been `+` PII `+` (by O)

`i.` People's breathing was being affected by the pollution in the city.

`-` Bị động QKTD: S `+` was/were (not) `+` being `+` PII `+` (by O)

`h.` Those papers haven't been signed my Mrs Andrews yet.

`-` Bị động HTHT: S `+` have/has (not) `+` been `+` PII `+` (by O)

`g.` Is that airplane being flew by a student pilot `?`

`-` Bị động HTĐ: `(?)` Am/Is/Are `+` S `+` PII `+` (by O) `?`

`j.` Where was the `1988` olympic games held `?`

`-` Bị động QKĐ: Wh-q `+` was/were `+` S `+` PII `+` (by O) `?`

`--------------`

`@` Lưu ý:

`+` Trong câu chủ động với các chủ ngữ “I, They, We, somebody, someone,everybody, everyone,....” thì khi chuyển sang câu bị động ta bỏ By O.

`+` By O đứng trước trạng từ chỉ thời gian và đứng sau trạng từ chỉ nơi chốn.

`=>` Tạm dịch: Bức ảnh của anh ấy đã được chiếu trên truyền hình.

Công thức - bị động:

-Thì HTHT: S + has/have + (not) been + V3/ed 

-Thì QKĐ: S + was/were + (not) + V3/ed 

(?) Was/Were +S+ V3/ed ? 

-Thì QKTD: S + was/were + being + V3/ed

-Thì HTĐ: S+ am/is/are + V3/ed 

-Thì QKHT: S+ had been + V3/ed 

-Thì HTTD: Am/Is/Are + S + being + V3/ed ?

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a. Tom has been operated by Mary since 10 o’clock,

b. This street wasn’t swept last week.

c. Two poems were being written by Tom.

d. Her dog is often taken for a walk.

f. The book had been returned to the library by Kathy.

i. People’s breathing was being affected by the pollution in the city. 

h. Those papers haven’t been signed by Mrs. Andrews yet.

g. Is that airplane being flown by a student pilot?

j. Where were the 1988 Olympic games held?

`color{orange}{~LeAiFuRuiHuiBao~}`