Seu time só perdeu porque o goleiro falhou e tomou o maior gol​

1-change the sentences from active to passive voice: a) we must finish those letters by five o'clock. b)they should send it to us at once. c) he has to finish it today. d) the police are holding him for further questioning. e) they may organize a new group next week. f) he has to pay the bill before the first of the month.