问题描述：
一个英语题''''he found ------very different -------the problem. A that to solve B thi...
一个英语题''''he found ------very different -------the problem. A that to solve B this solving. C himself. solve. D it. to. solve. 谢谢
一个英语题''''he found ------very different -------the problem. A that to solve B this solving. C himself. solve. D it. to. solve. 谢谢
问题解答：
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