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Tom has much difficulty             the article so he often asks me              help.

A. to understand, with
B. understanding, of
C. to understand, for
D. understanding, for
D
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科目：初中英語(yǔ) 來(lái)源：期中題 題型：單選題

Tom has much difficulty             the article so he often asks me              help.
[     ]
A. to understand, with
B. understanding, of
C. to understand, for
D. understanding, for

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