【题目】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
在线课程【答案】C
【解析】
试题分析：考查动名词复合结构。本句中介词for的后面要接动名词短语“being able to.....”做宾语，动名词的否定式是在前面直接加not，还可以在前面加所有格。句意：因为没有通知我计划的变化，Victor向我道歉。故C项正确。