听下面5段对话或独白。每段对话或独白后有几个小题，从题中所给出的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。 How many hours did Mr. Brown’s flight last

A． How Aswan Dam was buik.
B． Transporting with canal boats.
C． Canals and their uses.

[A] She tells him to sit with them.
B. She tells his to order the same thing.
C. She tells the man to leave.