阅读理解。 One day Einstein () was walking in the street in New York. His friend met him and said to him, 'Einstein, you should buy a new coat. Look, how old your coat is!' But Einstein answered, 'It doesn't matter. Nobody knows me here.' After a few years Einstein became a famous scientist. But he still wore the old coat. His friend met him again and asked him to buy a new one. But Einstein said, 'I needn't buy a new one. Everyone knows me here.' 1. Einstein was ______ scientist. A. an English B. a Chinese C. an American D. a Japanese 2. Einstein's coat was very old. His friend ______. A. gave him a new one B. asked him to buy a new one C. helped him buy a new one D. helped him mend the old coat 3. Einstein didn't want to buy a new one because ______. A. nobody knew him B. he liked the old one C. he had no money D. he didn't mind it 4. A few years later Einstein ______. A. bought a new one B. became a great scientist C. still wore an old coat D. B and C 5. The title of this passage should be ______. A. Einstein's Coat B. Einstein and His New Coat C. Einstein and His friend D. Einstein