各位老师，我们市的中考模拟题里有这样一道听力试题，听力原文是：
The sports meeting began on Wednesday and was over three days later.
所设题目是：
The sports meeting was over on ______ afternoon.
A. Thursday B. Friday C. Saturday
然后给的答案是B，该怎么理解呢？three days later不是从周三这个过去的时间算起的三天后吗？怎么会算出是周五呢？
