Change the voice of ‘We ought to have saved our environment’.
A. Our environment ought to have saved
B. Our environment ought to have been save
C. Our environment ought to have been saved
D. Our environment ought to had been saved
সঠিক উত্তরঃ
C.
Our environment ought to have been saved
Explanation: RD→\to→1)-256; Ought to, modal auxiliary হওয়ায় to have been saved হবে।