问题描述：
| It is ____ asking Tom for help, for he is always the last to help others. |
[ ] |
| A. useful B. helpless C. helpful D. useless |
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最佳答案：
| D |
最佳答案：
题目：It is ____ asking Tom for help, for he is always the last to help others. [ ]A. useful B. helpless C
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