Преобразуем предложение в пассивный залог двумя способами:
I will be given two tickets for the Tommy Hilfiger fashion show by Douglas.
Two tickets for the Tommy Hilfiger fashion show will be given to me by Douglas.
Ответ: I will be given two tickets for the Tommy Hilfiger fashion show by Douglas; Two tickets for the Tommy Hilfiger fashion show will be given to me by Douglas.