Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now, listen to the passage. What should one do when one intends to learn how to communicate with others

A．One can assess how appropriate the courses you’re considering buying.
B．One can focus on studying the oral and written language.
C．One can concentrate one’s efforts on the spoken language.
D．One can read information on the Internet or in books, magazines or newspapers.