____ the help of the teacher, Tom has made rapid progress ____ his studies.

A. For; at
B. Of; for
C. By; on
D. With; in
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科目：初中英語 來源：專項題 題型：單選題

____ the help of the teacher, Tom has made rapid progress ____ his studies.
[     ]
A. For; at
B. Of; for
C. By; on
D. With; in

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