单项选择题
Passage Three Questions 24 to 26 are based on the passage you have just heard.
A．It is a double-edged sword. B．It is a feature of a given culture. C．It is a unique gift of human beings. D．It is a result of both nature and nurture.
A．She failed to arrive at the airport on time. B．David promised to go on the trip in her place. C．Something unexpected happened at her home. D．She was not feeling herself on that day.