Lesson 43
A
1. Can I 2. Could we 3. aren't able to 4. has been able to
5. can't 6. Can I 7. were able to 8. were finally able to
B
1. I wasn't able to speak to him on the phone last night.
2. I will be able to see you at 10:30 tomorrow.
3. The baby is already able to stand up.
4. We aren't able to accept your kind invitation to dinner tomorrow.
5. They weren't able to tell me when the next plane would arrive.
6. He is not able to see you today because he is extremely busy.