请根据要求改写下列句子，每空一词。
【小题1】He had something to do with the case.  (改为否定句)
He _____________ _____________ anything to do with the case.
【小题2】As a boy, Tony liked art, but he liked music more. (保持句意基本不变)
As a boy, Tony _______ music _______ art.
【小题3】I mistook her for her sister because they looked the same. （改为被动语态）
She _____________ _____________ for her sister because they looked the same.
【小题4】Simon learns about the world by searching the Internet.  (对划线部分提问)
_____________ _____________ Simon learn about the world？
【小题5】His grandfather died three years ago. （保持句意基本不变）
Three years ______ _______ since his grandfather died..