在本节中，你将听到15个对话，每个对话有1个问题。请从[A]、[B]、[C]三个选项中选出答案，并标在试卷的相应位置。每段话后有15秒钟的停顿，以便回答问题和阅读下一问题。每段对话读两遍。
What can’t we learn from the conversation

[A] Jim is at home.
B. Jim’s father answered the phone.
C. The man has dialed the wrong number.

Mothers often do it.