单项选择题

Questions 1 to 3 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions.
Now listen to the conversation.
Where did the conversation take place

A．At the airport.
B．In the travel agency.
C．At the telephone.
D．On the Internet.
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问答题
Listen to the following passage, Altogether the passage will be read to you four times. During the first reading, which will be read at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last reading will be read at normal speed again and during this time you should check your work.You will then be given 2 minutes to check through your work once more.Please write the whole passage on ANSWER SHEET ONE.Now listen to the passage
单项选择题
in the meantime, the question facing the business is whether such research is ______ the costs.
A. worth
B. worth of
C. worthy
D. worthwhile
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