Odpowiedź:
Ex 1
1 She behaves as though she is a film star.
2 I would rather not invite her to the party.
3 I would rather he stopped shouting.
4 I wish Jack would accept our new offer.
5 If only you hadn't told her that.
6 Only if you have the ticket, you will be allowed in.
Ex 2
1 If she had taken the medication, she wouldn't be ill again.
2 Had she know, she would have reacted for sure.
3 Unless Tom asked for a pay rise, he wouldn't have got one.
4 If it weren't for my father's help, I wouldn't be able to study.
Wyjaśnienie:
W zdaniu 4 jest were, pomimo 3 os.l.poj. W okresach warunkach formą przeszłą od czasownika "to be" jest "were" dla wszystkich osób. W języku kolokwialnym jest dopuszczalna forma "was" w 1 i 3 os.l.poj.