We ought to obey our parents .(Change the voice )
A Our parents are obeyed by us .
B Our parents were obeyed by us.
C Our parents ought to be obeyed by us .
D Our parents was ought to obey by us.
Solution
Correct Answer: Option C
can,could ,may ,might ,will ,would,shall ,should,ought to ,used to ,must ইত্যাদি modal auxiliary verb গুলোর passive এ কোন পরিবর্তন হয় না । active voice-sub + modals+ main verb এর base form + object passive -obj +modals +be+ verb এর past participle +by+ sub .