Yes it is passive voice.
The active voice. The subject of the sentence ('the doctor') is the 'doer' of the action of the verb ('was treating'). If it were in the passive voice it would read 'The patient was being treated by the doctor.' The subject of the sentence ('the patient') would be the 'recipient' of the action of the verb ('was being treated').
The passive voice of ''what do you do'' is "what is done by you?"
"Your name is not known by me." is passive voice.
Passive voice
No this sentence is not passive voice.
The sentence "How did your host family treat you?" may be expressed in the passive voice as "How were you treated by your host family?"
How were you treated by your host family?
The active voice. The subject of the sentence ('the doctor') is the 'doer' of the action of the verb ('was treating'). If it were in the passive voice it would read 'The patient was being treated by the doctor.' The subject of the sentence ('the patient') would be the 'recipient' of the action of the verb ('was being treated').
The passive voice of ''what do you do'' is "what is done by you?"
"Your name is not known by me." is passive voice.
Passive voice
"Will you marry me" can be changed to passive voice as "Will I be married by you." In the passive voice sentence, the subject of the active voice becomes the object of the passive voice, and the object of the active voice becomes the subject of the passive voice.
Yes, "is addressed" is in the passive voice.
Can it be changed into passive voice?
passive active A+
No this sentence is not passive voice.
It is passive voice.