The Passive Voice of :-
Think before you speak.
AYou was advised to think before you speak.
BYou were advised to think before you speak.
CYou are advise to think before you speak.
DYou are advised to think before you speak.
The Passive Voice of :-
Think before you speak.
AYou was advised to think before you speak.
BYou were advised to think before you speak.
CYou are advise to think before you speak.
DYou are advised to think before you speak.