A brillant idea occurred to him,_____to his research in the lab.
问题描述：
A brillant idea occurred to him,_____to his research in the lab.
A.while devoting B.while devoting himself C.while he was devoted D.while devoted选项是D.为什么用被动不用主动
答
这句的主语是A brillant idea,不是he,所以不能用主动语态