Choose the correct variant of the sentence in passive. 1) caroline was paying for the meal. -a) the meal is being paid for by caroline.b) the meal was being paid for by caroline.c) the meal was paid for by caroline. 2) the police have arrested 12 people. a) 12 people have been arrested by the police.b) 12 people has been arrested by the police.c) 12 people should be arrested by the police. 3)frank sinatra sang my way. a) my way was sung by frank sinatra.b) my way had been sung by frank sinatra.c) my way will be sung by frank sinatra. 4) students of our group do such tests very often. -a) such tests are being done by students of our group very often.b) such tests have been done by students of our group very often.c) such tests are done by students of our group very often.