They failed to pass the exam last time.I

admin2022-08-02  16

问题 They failed to pass the exam last time.I regretted(  ).A.to be not able to helpB.being unable to helpC.being able to helpingD.not be able to help

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

答案 B

解析 Regret to do:对尚未做或者正在做的事表示遗憾;regret doing:对做过的事情表示遗憾。根据句意可知描述的是后悔没有帮助他们,故正确答案是选项B。
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