They failed to pass the exam last time; I regretted _______.

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问题 They failed to pass the exam last time; I regretted _______.

选项 A、to be not able to help
B、being unable to help
C、being not able to helping
D、not be able to help

答案B

解析某些动词跟不定式做宾语与跟-ing分词作宾语时有区别：“regret+不定式”：对尚未做的或正在做的事表示遗憾；“regret+-ing分词”：对做过的事情表示后悔。因此B为正确选项。

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专业英语四级

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