阅读理解：阅读下面短文，然后从各小题所给的四个选项中选出最佳选项。 John Denver was born on December 31, 1943, in New Mexico, the USA. He was one of the most popular singers during the 1970s. With  his  grandmother'S encouragement  (鼓励),Denver began to learn how to play the guitar at the age of 12, At first, he was a songwriter. Denver began to be a singer in 1969. In 1973, he was successful in one of his songs Take Me Home, Country Roads. It is popular both in the US and in the UK. The most successful year for him was 1975. He became really popular. Later, he tried some other things like 'opera and films. He died in October, 1997 in a plane crash (坠落). He was flying in his own plane over the Pacific Ocean  (太平洋). The plane crashed into the ocean. 1. Where was John Denver born? A. In Italy. B. In America. C. In China: D. In England. 2. When did John Denver start to sing? A. In 1969. B. In 1943. C. In 1975. D. In 1997. 3. Who encouraged  John Denver to play the guitar? A. His grandfather. B. His parents. C. His aunt. D. His grandmother. 4. John Denver tried some other things like ____ after 1975. A. violin and opera B. piano and films C. opera and films D. guitar and opera 5. How did John Denver die? A. He died in a car accident. B. He died in a plane crash. C. He died in a movie. D. We don't know.