阅读理解。 Confucius was born on September 28, 551BC. Chinese regard (看待) Confucius as the greatest thinker and also the greatest teacher. He had about 3,000 students. For more than 2,000 years, Confucius' ideas have been around in people's everyday life. Now they have gone far into east and south Asia. People can still hear them today. Why are his ideas so popular? Because they help a lot in everyday life. Confucius said young people should take care of the old. People should give up thinking of themselves and work for others. As a great teacher, Confucius said all should go to school if they could. 1. Confucius was born on _____. [     ] A. September 28, 551 AD B. September 28, 551 BC C. December 28, 551 BC D. December 28, 551 AD 2. Confucius' ideas have gone far into _____. [     ] A. east and south Asia B. north and west Asia C. east and south Africa D. north and west Africa 3. Confucius thought _____. [     ] A. young people needn't take care of the old B. people should think of themselves C. people should work for others D. all the people could go to school 4. What do people think of Confucius? [     ] A. The greatest leader and teacher. B. The greatest thinker and teacher. C. The greatest leader and thinker. D. The greatest doctor and teacher. 5. What's the passage mainly about? [     ] A. All should go to school. B. The old and the young. C. Work for others. D. Confucius and his ideas.