In this section, you will hear several passages.
Listen to the passages carefully and then answer the questions that
follow. Questions 11 to 13 are based
on the following passage. At the end of the passage , you will be given 15
seconds to answer the questions. Now, listen to the
passage. Tipping in America now is regarded as all the following EXCEPT ______.
A．the index of one’s status in a sense B．part of the accepted cost of a service C．a reflection of their character D．a kind of personal attitude