Bài `4` :

`1.` Money is collected by John.

`→`Bị động với hiện tại đơn : S + am/is/are (not) + VPII + (by O)

`2.` Window was opened by Anna.

`→`Bị động với quá khứ đơn : S + was/were (not) + VPII + (by O)

`3.` A question will be asked.

`→`Bị động với tương lai đơn : S + will be + VPII + (by O)

`4.` A diamond necklace was bought (by her).

`→`Bị động với quá khứ đơn : S + was/were (not) + VPII + (by O)

`5.` A blue shirt was worn.

`→`Bị động với quá khứ đơn : S + was/were (not) + VPII + (by O)

`1` Money is collected by John.

`2` The window was opened by Anna.

`3` The question will be asked.

`4` Diamond necklace was bought by her.

`5` The blue shirt was wore by his.

`⇒` Câu chủ động: Subject + Verb + Object
     Câu bị động: Subject + Verb + By Object