`1.` She learns English for her work.

`=>` English is learned for her work.

`2.` They didn’t see you at the bus stop.

`=>` You weren't seen at the bus stop.

`3.` When did you break your leg?

`=>` When was your leg broken ?

`4.` My dog attacked the police.

`=>` The police was attacked by my dog.

`5.` I couldn’t catch any fish.

`=>` Any fish couldn't be caught by me.

`6.` Mrs. White has given us some candies.

`=>` We have been given us some candies by Mrs. White.

`7.` Most of the boys listened to the teacher attentively.

`=>` The teacher was listened to attentively by most of the boys.

________________________________________

`+` Cấu trúc câu bị động:

`-` Thì HTĐ: S + am/is/are + PII + (BY  O)

`-` Thì QKĐ: S + was/were + PII + (BY  O)

`-` thì HTHTL: S + have/has + been + PII + (BY  O)
`-` Động từ khuyết thiếu: S + ĐTKT + be + PII + (BY  O)

English is learned for her work.

you weren't seen at the bus stop.

When was your leg broken ?

The police was attacked by my dog.

Fish couldn't be caught by me.

We have been given some candies by Mrs.White.

The teacher was listened attentively by most of the boys.

`*********` giải thích : những cấu trúc bị động dùng ở trên : 

`+` Cấu trúc bị động thì HTĐ : S+is/am/are + (not)+V3/ed +(by+O).......

`+` cấu trúc bị động thì QKĐ : S+were/was+ (not) + V3/ed+(by+O).....

`+` cấu trúc bị động thì HTHT : S+has/have+ (not)+V3/ed +(by+O).......

`+` cấu trúc bị động vs model verb : S+can/could/might/may/will/.... + (not) +be+V3/ed +(by+O).......