I'm very tired. I ______ (haven't been able to / couldn't) sleep recently
haven't been able to
He ____ (wasn't able to / couldn't) speak until he was 3 years old.
wasn't able to / couldn't
We ____ (weren't able to / couldn't) do the English exercises. They were too difficult.
weren't able to / couldn't
He's very happy now that he ____ (has been able to / could) find a new job. He starts tomorrow.
has been able to
I've always wanted _____ (able) speak another language.
to be able to
I forgot to bring my phone so, I ____ (wasn't able to / couldn't) call you.
wasn't able to / couldn't
It was a very difficult football match. But, in the end, we ____ (were able to / could) beat the other team.
were able to
Now that she has lived in her own apartment for the last 3 months, she ____ (is able to / can) cook really well.
is able to / can
Fortunately, the firefighters _________ (able) rescue the cat that was trapped in the tree.
were able to
__________ (able) reserve a table at the restaurant?
Have you been able to
The doctor _________ (able) see you right now. He has another appointment.
isn't able to
_________ (I can't / I'm not able to) call him because my telephone is out of battery. I need to charge it.
I can't / I'm not able to
She ________ (able) to walk since she was 10 months old.
has been able to
He ________ (wasn't able to / couldn't) speak to her because she wasn't there.
wasn't able to / couldn't
Will you ________ (able) come to my wedding?
be able to
I _________ (not / able) accept the job because it was too far away.
wasn't able to
