Chuyêbr thành câu bị động

`42.` When was he seen in that bank?

`43.` The keys were returned to me by a man.

`44.` Mary's friends will be seen off at the station.

`45.` That building has to be pulled down.

`46.` A knife was given to me to cut this bread.

`47.` Beer used to be drunk in England.

`48.` `3` shirts can be sewed a day.

`49.` It is considered that she is the best singer.

`50.` This room hasn't been used for ages.

`51.` An article is being translated into Vietnamese.

`52.` It was said that he had swallowed a safety pin.

`53.` I am being followed.

`54.` Our students will be assigned to different jobs by the State.

`55.` The letter was read again and again last night.

`56.` This is the first time we have been written about this.

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*Câu bị động:

`-` Thì HTĐ: $\text{S + am/is/are + P2 + (by O)}$

`-` Thì HTTD: $\text{S + am/is/are + being + P2 + (by O)}$

`-` Thì HTHT: $\text{S + have/has + been + P2 + (by O)}$

`-` Thì QKĐ: $\text{S + was/were + P2 + (by O)}$
`-` Thì TLĐ: $\text{S + will be + P2 + (by O)}$
`-` ĐTKT: $\text{S + ĐTKT + be + P2 + (by O)}$

$chucbanhoctot$
$\textit{~KaitoKid!}$