47. ____ in thought, he didn’t notice me when I came into his room.
—The soup too much salt.—I’m sorry, sir.I’ll change it for you.
Come and see me whenever ______.
It is essential that these application forms ______ back as early as possible.
—It can’t be too worse.—Just _____. Things will turn out to be better so long as you don’t stop trying.
_____ with so much trying work, she felt a little desperate.