题目内容：

根据短文内容及首字母提示，填写所缺单词，使短文意思完整。

On March 14, one of science’s brightest stars went dark. Stephen Hawking(史蒂芬·霍金), the world-famous British scientist, passed away p1.at 76 in Cambridge, UK.

Hawking is c2.by many to be the greatest scientist in history since Albert Einstein. He came up with the theory that the universe (宇宙) began with the Big Bang (大爆炸) and will end in black holes. He also wrote books to help c3.people understand the universe. His most famous book is A Brief History of Time (《时间简史》), which has sold more than 10 million copies around the world.

When Hawking was 21, he was diagnosed (诊断) with a serious i4.that prevented him from walking and talking. But this didn’t stop him from l5.a meaningful and colorful life. “If one is physically disabled (身体残疾), one c6.afford to be psychologically disabled(心理残疾) either,” he once said.

He celebrated his s7.birthday by going up in a hot-air balloon; when he was 65, he took part in a zero-gravity f8. to experience weightlessness. He hoped to t9.into space one day.

In 2013, Hawking spoke about h10. he felt life was unfair(不公平的)when he was first diagnosed with his illness. “But now, 50 years later, I can be quietly satisfied with my life,” he said.