问题
选择题
________ to his research work, the professor cared little about any other things.[ ]
A. Devoting
B. Devoted
C. Having devoted
D. To devote
答案
答案：B
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________ to his research work, the professor cared little about any other things.[ ]
A. Devoting
B. Devoted
C. Having devoted
D. To devote
答案：B