题目内容：

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写上该加的词。

删除：把多余的词用斜线（＼）划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词。

注意：1.每处错误及其修改均仅限一词。

2.只允许修改10处，多者（从第11处起）不计分。

Stephen Hawking, a famous physicist, was born in Britain on January 8, 1942. As a child, he was enthusiastic about designing complicated toys. But unlucky, he , in his twenty, was studying in Oxford University while he was found seriously ill. Therefore, this didn’t stop him living as meaningful and colorful life as others. He was so positive as to eventually defeated all the obstacles. He is also absorbed in his research into the universe. Publishing in 1988, his book A Brief History of Time became a best-seller , from where he put forward his famous theory on time. On March 14, 2018 , Stephen Hawking, died in the age of 76 in Cambridge, UK.