【填空题】
P—Passenger C—Clerk P: Excuse me. Can I ask something about high-speed train?C: ____ . P: How often does high-speed train go to Nanjing?C: ____ .P: How long does it take?C: ____ .P: Thanks a lot.C: ____ .1. That's all right.2. It goes there every 10 minutes.3. Yes, please go ahead.4. About an hour and twenty minutes.