Because of the financial crisis, days are gone ______ local 5-star hotels charged 6,000 yuan for one night.
People _______ in the city do not know the pleasure of country life.
The _______ price will save you one dollar for each dozen.
The student corrected his paper carefully, _______ the professor's suggestions.
He went from door to door, _______ waste papers and magazines.
. _______ the office, the foreign visitors were shown round the teaching building.