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秒钟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。
When should Jane go to see Professor White

[A] He overslept again.
B. He couldn’t tell the truth to the woman.
C. He failed the exam again.

A．ate
B．had eaten
C．am eating
D．have eaten