金融英語:社交活動(對話08)

Declining Invitation
    I am not quite sure whether I am free.
    I am not sure.
    It depends.
    Maybe. Maybe not.
    It looks as if I am not free tonight.
    I am not free at all.
    I am just remember that I have got another appointment.
    Sorry .I am afraid I can not go to the theatre tonight.
    I am away tonight.