37. We have learnt English for 4 years. A. We started to learn English 4 years. B. We started to learn English 4 years ago. C. We have started to learn English 4 years. D. We have started to learn English 4 years ago. 38. When did you start to listen to classical music ? A. How long did you listen to classical music ? B. How long have you listened to classical music ? C. How long have you listen to classical music ? D. How long did you listened to classical music ? 39. He often played the piano at night, but now he doesn’t A. He used to play the piano at night. B. He is used to play the piano at night. C. He used to playing the piano at night. D. He was used to play the piano at night. 40. People speak English all over the world. A. English is spoken all over the world. B. All over the world speak English. C. English were spoken all over the world. D. English was spoken all over the world.