【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. How has Mr. Humphries been learning SpanishA．He has been going to an evening class and made many foreign friends.

B．He has watched quite a lot ofDVD、
C．He has listened to theBBC、radio programs.
D．He has been going to an evening class and has watched quite a lot of theBBC、TV programs.