1.
Our teacher says we shall be able to speak English fluently in a few months.
2. I've
been trying for hours, but so far I (have not) been able to get through on the phone.
3. If he had asked me earlier, I woulld have been able to help him.
4. I'm sure she would
have helped you if she had been able.
5. I think I will be able to play tennis better after a
bit of practice.
6. He has managed to live in England for years without being able to speak English.
7. I'm practising hard because I want to be able to pass my
driving test first time.
8. If I had been able to sing, I would have loved to be an opera singer.
11. It's been a quiet day, I have been able to get some work done.