.Helen apologized for ____to attend the party.A.her not being able B.her being not able C.her to be not able D.her not to be able

问题描述:

.Helen apologized for ____to attend the party.
A.her not being able B.her being not able
C.her to be not able D.her not to be able

a

A her not being able
凡是动词非谓语形式的否定形式not都放在v.+ing前面