单项选择题
A. Traffic reductions have improved city center air quality. B. Larger roads have reduced city center traffic jams. C. Cycle areas have improved the flow of city center traffi
A. You can photocopy notices at Reception for display here. B. Photocopied notices can only be displayed at Reception. C. Take your notice to Reception if you want it displayed her
A. Don’t leave your luggage at a terminal. B. Don’t get far away from your luggage. C. Take good care of your luggage at a terminal.