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.
We have kept the bird in the cage for too long.

Options

A. a) Keeping of the bird in the cage has been done by us for too long.
B. b) The bird has been kept in the cage by us for too long.
C. c) We have been keeping for long the bird in the cage.
D. d) The bird would have been kept in the cage by us for too long.

Answer

A, B, C, D