【单选题】

Questions 18-20 are based on the following dialogue given by Professor Robert Watson who was answering questions on a radio phone program on the subject of learning a foreign language. You now have 15 seconds to read Questions 18-20. What advice was given by Professor Watson7A．Practice more in using the language.

B．Go to live with the native speakers.
C．Watch more TV programs.
D．Read more newspaper and magazines