Questions 19 to 21 are based on the passage you have just heard.

A．It does good to communication between people.
B．It encourages people to speak out their thoughts.
C．It enlarges the vocabulary of a particular language.
D．It hinders communication among individuals.

A．He cannot understand why she always speaks nonsense.
B．He does not think the woman knows how to enjoy herself.
C．He believes the woman is capable of being promoted soon.
D．He hates to choose between Chinese cuisine and French cuisine.