问题
选择题
Tom apologized for _____ to inform me of the change in the plan. [ ]
A. his being not able
B. his not being able
C. him not to be
D. him to be not able
答案
答案：B
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Tom apologized for _____ to inform me of the change in the plan. [ ]
A. his being not able
B. his not being able
C. him not to be
D. him to be not able
答案：B