题目内容：
根据下面对话，回答题。Dialogue One
Travel Agent: Freedom Travel. How may I help you?
Caller: Yes, I' d like to make a flight reservation for the twenty-third of this month.
Travel Agent: Okay.____ 1____
Caller: Well. I' m flying to Helsinki, Finland.
Travel Agent: Okay. Let me check what flights are available. And when will you be returning?
Caller: Uh, well, ____2____ Oh, and I' d like the cheapest flight available.
Travel Agent: Okay. Let me see. Um, hmm...
Caller: Yeah ?
Travel Agent: Well, the price for the flight is almost double the price you would pay if you leave the day before.
Caller: Whoo. Let' s go with the cheaper flight. ____3____
Travel Agent: It' s only $ 955.
Caller: Alright. Well, ____4____
Travel Agent: Okay. That' s flight 1070 from Salt Lake City to New York, Kennedy Airport, transferring to flight 90 from Kennedy to Helsinki.
第1题_______ A．By the way, how much is it?
B．What is your destination?
C．I'd like to catch a return flight on the twenty-ninth.
D．let' s go with that.
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答案解析：