H7N9 bird flu is a virus can make people die. We’d better stay away from birds at present.
–Are you scared of the flight? --No, just a little ________.
–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.