Passive переведите пожалуйста предложения!! с 12-32

12.The letter hasnt been sent yet.
13.This novel hasnt been translated into Russia yet.
14.-Have you been invited to the party - No, i havent. Im not sure if they invite. 
15.Shes treated really well.
16.He hasnt been anywhere yesterday. 
17.Youre asked to the phone.
18.Youll be sneered at if you say it.
19.He knew what to answer as he has been already asked such questions.
20.The work will be finished by the evening.
21.Why has he been sent for too late
22.I want to be understood right.
23.When the light had been turned on, she understood that somebody was there .
24.He has been just introduced to me.
25.This article is really interesting but it is rare refered to.
26.Smoking is not allowed here.
27.Were warmly hosted in that house as usual.
28.The tickets for this play are difficult to get if you didnt do it earlier.
29.The radio has been invented by Popov in 1895.
30.This article should be translated immediatly.
31.This question has been discussing when we intered the room.
32.The plan of the trip is being discussed for 2 hours