单项选择题
第一节
听下面5段对话。每段对话后有一个小题，从题中所给的[A]、[B]、[C]三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有10秒的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 What does the man mean about Professor Hall
[A] He won’t come back until the end of the conference.
B. He will come back this week.
C. He will stay in London for another week.