Mr Smith, there’s a man at the front door who says he has news _________ vital importance.
Mary and Jane who are similar ________each other are very similar ________outlooks (看法).
-Don't you think that her performance has made a sensation?-Who but you can be ________by that?
-Whose bag is this?-It's not mine. It must be________.
________everyone can hear the speaker,there is no ________in turning up the radio.
It's reported that a plane with five people ________crashed into the mountain several days ago.