The Passive Form of:-
His conduct surprised me .
AI was surprised at his conduct.
BI am surprised at his conduct.
CI was surprised by his conduct.
DI were surprised at his conduct.
The Passive Form of:-
His conduct surprised me .
AI was surprised at his conduct.
BI am surprised at his conduct.
CI was surprised by his conduct.
DI were surprised at his conduct.
Related Questions:
The Passive voice of " Whom has he praised ?"
Change into passive voice .
You have to choose a option .