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，各小题将给出5秒钟的作答时间。每段对话或独白读两遍。听下面这段对话，做第6～7题。现在你有10秒钟的时间读题目。
What will they talk about

A． Because he had to go home.
B． Because he had to get up early.
C． Because he was tired.

A. He thinks it is better than studying at home.
B. Prefers to study than to go home.
C. He prefers to study at home.