Direction: Select the correct passive form of the given sentence.
The Slaters had stolen the clock from his room thinking that he had died.
1
The clock from his room had been stolen by the Slaters thinking that he had died.
2
The clock has stolen by the Slaters from his room thinking that he has died.
3
The clock had been stolen by the Slaters from his room thinking that he had died.
4
The clock had been stolen by the Slaters from his room thinking that he had been died.