单选题 Why was the flight postponed?

A、 Some passengers are late for departure.
B、 The weather conditions are poor.
C、 A connecting flight hasn't arrived.
D、 There is a problem with the plane.

【正确答案】 D

【答案解析】解析：题目是在询问航班延误的原因，应仔细听与题目的中心语flight postponed相关的内容。公告中提到“The flight has been postponed…because of mechanical problems with theplane．”，即由于飞机的机械故障造成延误。因此正确答案是(D)There is a problem with theplane．。

单选题 What does the speaker suggest the listeners do?

A、 Check their documents
B、 Remain in the airport terminal
C、 Pay attention to their belongings
D、 Sign their names on a form

【正确答案】 B

【答案解析】解析：题目是在询问说话者建议听者做的事情，应仔细听公告的中后部分与建议相关的内容。公告中提到“Please be advised that we do not recommend leaving the airport terminal…”，即建议听者不要离开机场。因此正确答案是(B)Remain in the airport terminal。

单选题 How can listeners get a voucher?

A、 By signing up for a membership card
B、 By filling out a form
C、 By showing their boarding passes
D、 By raising their hands

【正确答案】 C

【答案解析】解析：题目是在询问听者获得代金券的方式，应仔细听与题目的中心语voucher相关的内容。公告中提到“…present your boarding pass to our ticket agents to receive one(vouchers)．”，即向票务员出示登机牌，就会得到一张代金券。因此正确答案是(C)By showing theirboarding passes。