Sara _____ a stomachache. So she ____ eat anything for twenty-four hours.
–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.