They failed to pass the exam last time, I regretted______.

admin2012-08-03  16

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 help
D、not be able to help

答案B

解析 本题考查的是regret的用法。regret to do表示很遗憾地做某事,但后面的动作尚未发生。例如:I regret to tell you that you didn’t pass the exam.而regret doing则表示很遗憾做过某事,比如这里,没能帮上忙是过去的事情,已经发生过,故用现在分词形式。而现在分词部分变否定形式则要在be前面加not,而不是在be后面,故排除C,而选B。
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