改一般疑问句和否定句,和对划线部分提问

Peter wanted to go to the party.(go to the party划线)
一般疑问 Did Peter want to go to the party?
否定 Peter didn't want to go to the party.
提问 What did Peter want to do?
Winnie has been to ocean park already.(has been to ocean park划线)
一般疑问 Has Winnie been to ocean park already?
否定 Winnie hasn't been to ocean park yet.
提问 What has Winnie done?
They will have an exam this afternoon.(this afternoon划线)
一般疑问 Will they have an exam this afternoon?
否定 They won't have an exam this afternoon.
提问 When will they have an exam?Has Winnie been to ocean park already？already不是改成yet么啊，是sorry