Задайте 4 вопроса. I have already been to London.
Специальный
Общий
Альтернативный
Вопрос с хвостиком ( Tag questions)

Общий- Have I already been to London? (Yes, I have-No, I haven't)

Спец- Where have I already been?

альтер- Have I already been to London or New York ?

разделит - I have already been to London, haven't I?