— Look! That’s Amy.  — It _______ be her. She’s gone to Xi’an.

 —What should we do before we use the blender?   —I think we must read __________.

David Beckham has ______ children. Brooklyn Beckham is his ______ son.

   is the pencil box?  It’s red.

-- ________do you usually go to work?--I usually ________a bus to work.