Помогите плиз!!! Сделайте номер 10 и 14

10)
1)I was able to talk when i was 10
2)We were able to go by taxi because we were late
3)She can be italian because of her accent
4)It might be sunny tomorrow
5) I was able to read this text last summer. Its not difficult at all
6)My sister was able to swim before she learned how to walk

Выделенное замена could, если я верно понял задание