2. 外语
  3. ______ to his research work, the professor cared little about any other things.

______ to his research work, the professor cared little about any other things.

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问题 ______ to his research work, the professor cared little about any other things.
选项 A、Devoting
B、Devoted
C、Having devoted
D、To devote
答案B
解析 此题是动词的过去分词在句子中作状语．表示原因。可以把它理解为省略的状语从句，即：As the professor was devoted to his research work…根据题意选B。
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