Answers

  • Brainly User
2014-05-14T12:05:49+05:30
A perfect dam has been built by them across the river
0
2014-05-14T12:15:43+05:30
This is the active voice. the passive voice for this is :-
A perfect dam has been built by them across the river.
now i need to make u understand for this question 
Dam is an object so has been used and the they in the active voice has became them in the passive voice.
hope this helped u !!!!!!!!!
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