Which of the following statements are the benefits of a commonly used language?
A.
A bridge language makes it possible to communicate with people from different cultures.
B.
Owing to the communication in one commonly used language, traditions and customs of different cultures are transmitted.
C.
Intercultural communication activities, such as, international business, academic conferences, and political visits, etc. are helpful to spread one certain culture to other places.
D.
Because of the commonly used language, many local cultures disappear.