a work of ____ , we can’t judge itsvalue by appearances.

John is so excited．Did he win the competition —Yes. He was lucky and he had ______one minute to complete the special task，no more and no less．

Close the door of fear behind you，and you ________ the door of faith open before you.(2012·湖南)

_________life began on the earth is one of thebiggest puzzles to scientists

His reactions are noone can match him.