This novel is set in the modern city, San Francisco, so once_______, it will be very popular.
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.