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  3. They failed to pass the exam last time. I regretted ______.

They failed to pass the exam last time. I regretted ______.

admin2011-04-26  48
问题 They failed to pass the exam last time. I regretted ______.
选项 A、being unable to help
B、to be not able to help
C、being not able to help
D、not be able to help
答案A
解析 本题为语法结构题。regret doing sth 表示“后悔做过了某件事”，而 regret to do sth 表示“不想去做某件事”。另外，否定词 not 应该放在动名词和动词不定式之前，即 not doing sth 和 not to do sth。本句大意为：上次他们考试没通过，我后悔没能帮助他们。
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