—The charity walk begins _______ 9.00 a.m. Don’t be late. —No problem.
–Look at that girl! Is it Susan? --No, it _______ be her. She has gone back to her hometown.
–Would you mind my using your dictionary?--__________.
–Thanks for your help.--_________.
–Where are you going for your holiday?--Well, we _______ yet.
--When _______ you _______ to learn to skate? --Five years ago.