`6` The accident was caused in this city by some drunk drivers

`->` Câu bị động thì QKĐ : S + was/were + Vpp + (by O)

`7` Tom's parents will be visited by him next month

`->` Câu bị động thì TLĐ : S + will + be + Vpp + (by O)

`8` The secretary wasn't phoned by the manager this morning

`->` Câu bị động thì QKĐ : S + was/were + not + Vpp + (by O)

`9` Was this beautiful dress bought by Mary ?

`->` Câu bị động thù QKĐ : S + was/were + not + Vpp + (by O)

`10` These old pictures won't be hang out in the living room

`->` Câu bị động thì TLĐ : S + will + be + Vpp + (by O)

`11` This factory wasn't built by the German during the Second World War

`->` Câu bị động thì QKĐ : S + was/were + not + Vpp + (by O)

`12`  This house and these cars are going to be painted for Christmas Day by the Green

`->` Câu bị động thì TLG : S + be + going to + be + Vpp + (by O)

`13` The cats had been fed by Ann before she went to the cinema

`->` Câu bị động thì QKHT : S + had + been + Vpp + (by O)

`14` The pollution problems have been discussed by the students since last week

`->` Câu bị động thì HTHT : S + have/has + been + Vpp + (by O)

`15` Has the most valuable painting in the national museum been stolen by the thieves? 

`->` Câu bị động thì HTHT : S + have/has + been + Vpp + (by O)

`6.`The accident in this city was caused by some drunk drivers.

`=>`Bị động với quá khứ đơn : S + was/were (not) + Vpp + (by O)

`7.`Tom's parents will be visited by him next month.

`=>`Bị động với tương lai đơn : S + will/ won't + be Vpp + (by O)

`8.`The secretary wasn't phoned by the manager this morning.

`=>`Bị động với quá khứ đơn : S + was/were (not) + Vpp + (by O)

`9.`Was this beautiful dress bought by Mary ?

`=>`Câu hỏi nghi vấn bị động với quá khứ đơn : Was/Were + S + Vpp + (by O)

`10.`These old pictures won't be hang out in the living room.

`=>`Bị động với tương lai đơn : S + will/ won't + be Vpp + (by O)

`11.`This factory wasn't built by the German during the Second World War.

`=>`Bị động với quá khứ đơn : S + was/were (not) + Vpp + (by O)

`12.`This house and these cars are going to be painted for Christmas Day by the Green.

`=>`Bị động với be going to : S + am/is/are going to + be Vpp + (by O)

`13.`The cats had been fed by Ann before she went to the cinema.

`=>`Bị động với quá khứ hoàn thành : S + had + been Vpp + (by O)

`14.`The pollution problems have been discussed by the students since last week.

`=>`Bị động với hiện tại hoàn thành : S + have/has (not) + been Vpp + (by O)

`15.`Has the most valuable painting in the national museum been stolen by the thieves ? 

`=>`Câu hỏi nghi vấn bị động với hiện tại hoàn thành : Have/Has + S + been Vpp + (by O) ?