在本节中，你将听到15个对话，每个对话有一个问题。请从[A]、[B]、[C]三个选项中选出答案，并标在试卷的相应位置。每段对话后有15秒钟的停顿，以便回答问题和阅读下一问题及其选项。每段对话读两遍。 下面，请听这些对话。 How many students haven’t got the books

[A] Because she doesn’t like it.
B. Because she knows the answer.
C. Because she doesn’t know how to do it.