_________to his research work,the professor cared little about any other things.
A.Devoting
B.Devoted
C.Having devoted
D.To devote
请对各选项加以分析。谢谢！！

答案选b.考察devote的用法，它有两种用法：
I devoted myself to the reseach
I was devoted to the reseach.如果devote后跟to时，用be devoted to
要做这道题我们可以先把它分成两个句子：
Because the professor was devoted to the reseach , the professor cared little about any other things.
因为前后主语一致，所以可以将前一句的原因状语，用分词来表示，前后主语一致，所以留下后一句的主语，因为是被动，所以用过去分词来表示，这样就成了：
Devoted to the reseach , the professor cared little about any other things.
因为只能用过去分词，所以其他的选项不对