Câu bị động ( Thì HTĐ , QKĐ , HTTD , HTHT , TLĐ ) :

`-` Thì HTĐ : `\text{S + be + V3 / PII ( by O )}`

`-` Thì QKĐ : `\text{S + was / were + V3 / PII ( by O )}`

`-` Thì HTTD : `\text{S + is,am,are + being + V3 / PII ( by O )}`

`-` Thì HTHT : `\text{S + have / has + been + V3 / PII ( by O )}`

`-` Thì TLĐ : `\text{S + will be + V3 / PII ( by O )}`

`1.1`.They are given some boys by their parents today

`1.2`.Some boys are given to them by their parents

`2.1`.He was bought 2 books by my mother in 2017

`2.2`.2 books were bought for him by my mother in 2017

`3`.Accident will be got without helmets

`4`.A beautiful song has been sung in the party by Nam many times

`5`.Cars are being driven to go to school by those students at this time

`6`.A lot of sports were played to stay in shape by my sister yesterday

`7`.A cup of milk is drunk everyday

`\text{@ TheFox}`