1 . 听下面一段较长对话，回答以下小题。
1. Why is the man making the telephone call?

A．He is inviting Mr. Brown to go to Sydney.

B．He is giving information about Mr. Brown’s flight.

C．He is fixing a time to meet Mr. Brown at the airport.

2. When does Mr. Brown have to be at the airport?

A．By 8:30.

B．By 9:30.

C．By 7:30.

3. What number can Mr. Brown call if there is a problem?

A．33466820.

B．33686220.

C．33486220.