这2道选择题,做的对吗?
20. - Is there a room available for tonight?
- Yes, Sir. May I help you?
- ______B___
A. Thank you.B. I'm hoping to book a single room.
C. I want to go for a walk. D. No, that's fine.
21. - Why did Mrs. Green go to the travel agency?
- _____D____
A. By car. B. Yesterday afternoon.
C. In New York.D. For some information about travel.