Questions 23 to 25 are based on the conversation you have just heard.

A．Their miserable lives as minorities in countries other than their own.
B．Their commitment to the education of their students in their homeland.
C．Their frequent travelling between the U. S. and their own country.
D．Their determination to and confidence in achieving the best education in the U. S..

A．He meant to inform her but forgot.
B．He was too busy to take time out to tell the woman.
C．He didn’t know the class was canceled too.
D．He planned to tell the woman but slipped on his way.