Real Madrid is sure to win the match !—It’ s hard to say . You know, anything ________ happen even in the last minute.

下列各句中，没有语病的一句是

Many people are ________ as to what to do when thereis a fire.

I really think he is an excellent actor.—I agree with you _______

Greenland, ＿＿＿＿＿island in the world, covers even two million square kilometers.