In the following question, a sentence has been given in Active/Passive Voice. Out of the four alternatives suggested, select the one which best expresses the same sentence in Passive/Active Voice.
These things have been left here by an unknown customer.
The authorities will reward you for your hard work.
People felt that the police were corrupt.
They found him lying dead on the roadside.
Scientists generally believe that small islands would sink.
The Principal promised the boys a holiday.
A police constable arrested the burglar just before dawn.
The checker checks the admission tickets at the gate.
People criticized him for not offering to pay for the damage.