单项选择题
单项选择题 Notices for display above this photocopier must first be handed to reception.()
单项选择题 The airport express departs from platform 3 every 20 minutes during the day (every 30 minutes at night).()
单项选择题 Goods not normally dispatched unless paid for at time of ordering payment on delivery by special arrangement only. Customers should normally pay for goods ().