English英语问题
Victor apologized for ______ to inform me of the change in the plam.
A.his being not able
B.him not to be able
C.his not being able
D.him to be not able
这道题在百度上有,可是我想问一下,能不能仔细帮忙介绍一下什么是for+being/doing句型的具体用法?还有,这道题为什么不能选A?问题有点多,但.