Bị động - QKĐ: S + was/were + V3/ed 

Bị động - HTTD: S + am/is/are + being  +V3/ed 

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II)

1. Fiona was invited to John's birthday party last night.

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

3. They were shown the special camera.

4. Was Ann given some bananas and some flowers?

III)

1. The food is being cooked in the kitchen by Mrs. Green.

2. She was being helped with the housework.

3. That film is being remade.

4. My motorbike is being washed by my dad.

5. A large gift bag is being carried on Santa's back.

6. The ball is being thrown into the basket by Linh.

7. The dinner is being prepared in the kitchen by her mother.

`color{orange}{~MiaMB~}`

`II`

`1` Fiona was invited to his birthday party by John last night.

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

`3` They were showed the special camera.

`4` Was Ann given some bananas and some flowers? 

`III`

`1` The food is being cooked in the kitchen by Mrs Green.

`2` She is being helped with the housework.

`3` That film is being remade.

`4` My motorbike is being washed by my dad.

`5` A large gift bag is being carried by Santa on his back.

`6` The ball is being thrown into the basket by Linh.

`7` The dinner is being prepared in the kitchen by her mother.  

`====`

`-` Bị động thì QKĐ: S + was/were + (not) + PII + (by O)

`->` `(?)` Was/were + S + PII + (by O)?

`-` Bị động thì HTTD: S + is/am/are + (not) + being + PII (by O)

`->` `(?)` Is/am/are + S + being + PII (by O)?