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

B for后面接动词的ing形式,not是放在be后面的

A.her not being able
动词非谓语形式not放在v.+ing前面