The time the old man devotes ____ English at home is very important to him.

A. to studying
B. to study
C. of being studied
D. of studying
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科目：高中英語 來源：0103 月考題 題型：單選題

The time the old man devotes ____ English at home is very important to him.
[     ]
A. to studying
B. to study
C. of being studied
D. of studying

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