A．The flight won't take off on time．
B．The man wants to change his flight．
C．There is no flight to Hong Kong.
D．The woman will call back later.

A．He will have a job interview．
B．He has just secured a job position.
C．He passed his final exam.
D．He got the tickets for a big game.

A．The operation of the new fax machine.
B．The advantage of the new technology.
C．The information released through the mail system.
D．The necessity of setting up access code.