In order to find the missing boy, the young couple all they can over the past twenty-four hours.
Do you think _____ possible to work out a correct figure of the income that the Expo will bring to China?
—You’ve finally figured out the puzzle! —Yeah, in a complex way, _____.
—I’m terribly sorry, Lucy.I’ve left your notebook at home. —_____? I reminded you last night.
_____ we have finished the course, we shall start doing more revision work.
I’ll never forget the days ______ I spent on the farm.