听下面5段对话或独白。每段对话或独白后有几个小题，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。听每段对话或独白前，你将有5秒钟的时间阅读各个小题；听完后，各小题给出5秒钟的作答时间。每段对话或独白读两遍。 What did the woman de when the robber pointed a knife at her
A． She asked the passengers for help. B． She ran to a policeman for help. C． She caught hold of his knife.