阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项。
Stephen Hawking is one of the most famous scientists in this century. The disabled writer of A Brief History of Time, was on his second journey to China in Hangzhou of Zhejiang Province. His first 1was over ten years ago. The great theoretical scientist has been invited to 2 a mathematics research institute at Zhejiang University, Metropolis Newspaper reported.3Sunday evening, he made his appearance at a press conference 4 at Shangri-La hotel, Hangzhou. Hawking 5 at about 5: 00 pm with his wife. The elderly man answered a total of nine 6 with the help of his 7. “I find the real universe much more 8 than the one in the film Star Wars,” Hawking joked. “I 9 young people to study theoretical physics first 10 they are interested in it. But the talented man 11 has produced such rich work suffers from 12 motor neuron disease（运动神经元病）. He is one of the 350,000 sufferers in the world. The disease 13 over 100,000 people every year. “I like life and I love life, my family ,and music give me the 14 happiness,” smiled Hawking, who can 15 move two fingers.
In the speech, Hawking said he was 16 to write a new edition of A Brief History of Time 17 young children. “A Brief History of Time is my first book for 18 people. But I later found that I could write it in a 19 way,” he answered. “So I decided to rewrite it 20 all people can read it easily.” Unfortunately, he left us forever on Marchl4 this year. We remember his words “My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all.”
