A：How was the party yesterday?
    B：Did you enjoy it?
    A：Oh,don't talk to me about yesterday!It was the most awful evening I've ever had.
    B：Why!what happened?
    A：Well.John had promised to be my date,but he stood me up.I waited for a full hour in the cold wind.
    B：So how long did you stay?
    A：I left after the opening dance.I couldn't wait to get out of there.