---- Tony, you look puzzled. Have you understood me ? ---- I’m sorry. I _____ another problem just now.
.--- Has your daughter finished writing the composition? --- Sorry, I don’t know, but I do know that she _____ it early this morning.
.The old woman sat alone in the room, eyes ___ on the opposite wall.
.---Was the manager angry with you when he saw you playing computer games in offece hours?---No, he was not angry at all ____ I was doing, but just said, “ Go back where you were.”
.. Shanghai celebrates ______ one year countdown to the opening of ____ 2010 World Expo on May 1,2009.
.---How long are you going to stay in the country? --- It’s hard to say. ______.