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 Spanish
A.He has been going to an evening class and made many foreign friends. B.He has watched quite a lot of DVD. C.He has listened to the BBC radio programs. D.He has been going to an evening class and has watched quite a lot of the BBC TV programs.