Turn the given sentence from active voice to passive voice. Specify which of the following answer is right?
Mary opened the door.
AMary was opened the door.
BThe door is opened by Mary.
CThe door was opened by Mary.
DMary has opened the door.
AMary was opened the door.
BThe door is opened by Mary.
CThe door was opened by Mary.
DMary has opened the door.
Related Questions:
Change into passive voice :
'They are following us'.