an announcement of the attacks of shark on swimmers appeared in the local newspaper *pasice vouice

`-` It was announced in the local newspaper that a shark attacked swimmers  

`-` A shark was announced in the local newspaper to attack swimmers  .

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`@` Bị động đặc biệt :

`-` It + tobe + announced that + S + V 

`=` S + tobe + announced + to V (Nếu V1 và V2 cùng thì).

Answer

- It was announced in the local newspaper that a shark attacked swimmers.

- A shark was announced in the local newspaper to attack swimmers.

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`*` Bị động đặc biệt (phát biểu ý kiến) :

Dạng 1 : It (chủ ngữ giả) + be + believed/thought/said ... + that + mệnh đề

Dạng 2 : S + be + believed/thought/said ... + to V (cùng thì)

`@` annouce (thông báo) - announced - announced

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Bị động QKĐ : S + was/were + PII ( by O ) - Chủ ngữ số ít `->` was