问题
选择题
| 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 |
答案
答案：D
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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 |
答案：D