Спасите пожалуйста!!! Не могу пройти дальше из-за этих трёх предложений!!! Сегодня это задание закрывается!!!

1. The lights weren't on at the house. I'm certain they were still out. - They couldn't have been at home because the lights weren't on.

2. There isn't a door at the back. It wasn't possible for the burglars to get in from there. - They couldn't have got in from the back because there isn't a door there.

3. We didn't take out insurance when we went on holiday and we had a car accident. - We should have taken out insurance when we went on holiday.

1. The lock was smashed. I'm certain the thief did it. - The thief (must have smashed) the lock.

2. It's possible that the owner forgot where he parked the car. - The car owner (might have forgotten) where he parked the car.

3. The lights weren't on at the house. I'm certain they were still out. - They (must have been out) home because the lights weren't on.

4. It's possible that they left a message on your voicemail. - They (might have left) a message on your voicemail.

5. The kids ate everything - they were really hungry. - The kids (must have been) really hungry because they ate everything.

6. There isn't a door at the back. It wasn't possible for the burglars to get in from there. - They Ответ (can not have got) in from the back because there isn't a door there.

7. It was wrong of them to take the book without asking me. - They(should not have taken) the book without asking me.

8. The project went completely wrong. It wasn't planned properly. - They
(can not have planned) the project properly because it went completely wrong.

9. We didn't take out insurance when we went on holiday and we had a car accident. - We Ответ (should have taken) out insurance when we went on holiday.