Làm sao ạ chỉ cho em với cái này là câu bị động

1) Should they help Jane with the sewing?

⇒ Should Jane be helped with the sewing by them ?

2) The mechanic is repairing Judy's car.

⇒ Judy's car is being repaired by the mechanic

3) We must do something before it's too late.

⇒ Something must be done before it's too late

4)They make these artificial flowers of silk.

⇒ These artificial flowers of silk are made

5) Did they feed Lulu last night?

⇒ Was Lulu fed last night ?

6) They ate all the food before we got to the party.

⇒ All the food was eaten before we got to the party

7) He has spelt this word wrongly.

⇒ This word has been spelt wrongly

8) Nick will bring the pizzas to our house.

⇒ The pizzas will be brought to our house by Nick

9) They used to drink beer for breakfast in England years ago.

⇒ Beer was drunk for breakfast in England years ago.

10) They were cleaning the floor when I arrived.

⇒ The floor was being cleaned when I arrived

11) They are digging the hole on the wrong side of the road.

⇒The hole is being dug on the wrong side of the road

12) They are going to steal your money if you're not careful.

⇒ Your money is going to be stolen if you're not careful

13) Has anyone ever asked you for your opinion?

⇒ Have you ever been asked for your opinion?

14) They use a computer to do that job nowadays.

⇒ A computer is used to do that job nowadays

15) How do people learn languages?

⇒ How are languages learned?

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