I. Change the following sentences to passive voice.

1. They have discussed the pollution problems since last month.

⇒ The pollution problems have been discussed since last month.

2. Is he going to repair this bicycle?

⇒ Is this bicycle going to be repaired ?

3. Have you sent the invitation cards to your friends?

⇒ Have the invitation cards been sent to your friends ?

4. My father moved the sofa into the living room.

⇒ The sofa was moved into the living room by my father.

11. Her sister is preparing the breakfast in the kitchen.

⇒ The breakfast is being prepared in the kitchen by her sister.

12. We should clean our teeth at least once a day.

⇒ Our teeth should be cleaned at least once a day.

13. The shop assistant handed the packages to the customer.

⇒ The packages were handed to the customer by the shop assistant.

14. The director awards the first prize to the best competitor.

⇒ The first prize is awarded to the best competitor by the director.

* Not copy ✅

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1.the pollution problems have been discussed the pollutionsince last month

2. Is this bicycled going to be repaired by him?

3. Have the invitation cards been sent to your friends?

4.the sofa was moved into the livingroom

11.the breakfast is being prepared in the kitchen by her sister?

12. Our teeth should be cleaned at least once a day

13. The packages were handed to the customer by The shop assistant

14. The first prize is awarded to the best competitor.