问题
选择题
Tom has much difficulty _____Chinese so he often asks me _____ help.[ ]
A. to understand, with
B. understanding, of
C. to understand, for
D. understanding, for
答案
答案：D
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Tom has much difficulty _____Chinese so he often asks me _____ help.[ ]
A. to understand, with
B. understanding, of
C. to understand, for
D. understanding, for
答案：D