The 2014 Olympic Winter Games is the         (one) time for Russia to host such games.
Plant VS. Zombie 2 is our group's favorite computer game, what's         (you)?
Tom, Peter or Jack can take this job, but I'm interested in who will work         (hard).
Many young parents choose to buy some books as presents on         (children) Day.
  The leaders believed         (strong) that the purpose of the program was to give young overseas Chinese a chance to learn more about themselves.