She apologized for ________ to come. A: not being able B: being not able C: not to be able D: not be able

They ___ do well in the exam. A: can be able to B: be able to C: can able to D: are able to

The manager apologized for ______ to attend the meeting. A: to be not able B: being not able C: not able D: not being able

They _________________swim last year. A: was able to B: were able to C: are able to

I've enjoyed ____ to talk with you. A: to be able B: being able C: to been able D: of being able

She apologized for ____ to come. A: her not being able B: her being not able C: not being able D: that she's not able to

She apologized for ______ to attend the meeting. A: her being not able B: her to be not able C: her not to be able D: her not being able

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

They ______play the piano when they were young.(could/be able to) A: could B: were able to C: was able to D: could/were able to

The Greens ______ come to your party tomorrow. A: is able to B: can be able to C: will be able to