Réponse :

 1. Our house was broken into last night.

2. All flights were cancelled because of fog.

3. That book has been read by millions of people.

4. The missing paintings are being looked for by the police.

5. She should have been told. (!)

6. The entry to the museum was being cleaned by the workmen. (!)

7. I am always invited to his birthday party.

8. The doors have not been opened yet.

9. The package will be delivered by somebody before 9 o'clock.

10. A book hadn't been written by this writer for years!

Verified answer

Bonsoir

mettre à la voix passive

1- Our house was broken into last night.

2- All flights were cancelled because of fog.

3- That book has been read by millions of people.

4- The missing paintings are being looked for by the police.

5- She should have been told.

6- The entry of the museum was being cleaned by workmen.

7- I am always invited by him to his birthday party.

8-The doors haven't been opened yet.

9- The package will be delivered before 9 o'clock.

10- A book hadn't been written by the writer for years !

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Au passif le sujet subit l'action.
Le sujet de la voix active devient complément d'agent introduit par "by" '(attention ! si celui-ci n'apporte aucune précision on ne le met pas)

On conjugue "BE" au temps de la voix active + participe passé du verbe.

Pour le present perfect ou past perfect on utilise la forme continuous.

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bonne fin de soirée☺☺☺