question_answer

Directions: 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 and mark your answer.

The beavers have built a perfect dam across the stream.

A) A perfect dam had been built by the beavers across the stream

B) A perfect dam has been built by the beavers across the stream

C) A perfect dam have been built by the beavers across the stream

D) A perfect dam was being built by the beavers across the   stream