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。

单选题 What does the announcement tell people?A. They should start leaving the exhibition hall now.B. No more visitors will come.C. The exhibition is still open.

【正确答案】 B

【答案解析】
[听力原文] <6>-<7>
Ladies and gentlemen, we are closing the Students' Art Exhibition in 15 minutes at half past five. We will now stop letting in any more visitors. All visitors in the hall please begin moving towards the gate. Thank you.

单选题 When was the announcement made?

A、

A. Half past five in the afternoon.
B、

B. Fifteen minutes to five.
C、

C. A quarter past five.

【正确答案】 A

【答案解析】