Помогите кто знает! Надо выбрать правильный вариант

2. can come

3. won't be able to

4. couldn't

5. wasn't able to come

6. will you show

7. can we do

8. to be able

9. must speak

10. managed to

11. could hear

12. managed to

Смотри в фотках ответы.