问题
单项选择题
听句子，缩写原文。（）
A．He finished the negotiation in three days.
B．He was on a business trip ten days ago.
C．His toughness cost him three more days.
D．His business trip lasted thirteen days.
答案
参考答案：B
解析：
[听力原文]Last month our manager took a ten-day business trip to Chicago, but he had to stay there for 3 more days as the negotiation turned out to be a tougher one.