单项选择题
The airport express departs from platform 3 every 20 minutes during the day (every 30 minutes at night).()
A. The train service to the airport runs 24 hours a day. B. Airport trains leave Platform 3 at 20 minutes past the hour. C. The airport express takes half an hour at night.
单项选择题 Notices for display above this photocopier must first be handed to reception.()
单项选择题 Send $30 for catalog. Refundable against purchase.
单项选择题 If any problem occurs, contact your nearest Sony dealer, Whenever something goes wrong, ______.
