Davinchii

Ответ:

1. can

2. haven't been able to

3. couldn't

4. were able to

5. won't be able to

6. Could

7. was able to

8. won't be able to

bzavirukha

Ответ:

1.Can

2.haven't been able to

3.couldn't

4.were able

5.won't be able

6.could you

7.was able

8.hadn't been able