问题
选择题
He apologized for ____able to inform me of the change about the plan in advance.
A．his being not
B．his not being
C．him not to
D．him to be not
答案
答案：B
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He apologized for ____able to inform me of the change about the plan in advance.
A．his being not
B．his not being
C．him not to
D．him to be not
答案：B