题目内容
Victor apologized for ____ to inform me of the change in the plan .
A. his being not able B. him not to be able
C. his not being able D. him to be not able
C

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题目内容
Victor apologized for ____ to inform me of the change in the plan .
A. his being not able B. him not to be able
C. his not being able D. him to be not able