Write the same differently. Use to be able to. Example: He can go to university next year. He will be able to go to university next year.

Ответ: Задание подразумевает перефразирование предложений с использованием конструкции "use to be able to".

Пример уже дан, нужно сделать аналогично для остальных предложений:

1. I could play football when I was eleven. I used to be able to play football when I was eleven.
2. You can't drive a car when you are fifteen. You aren't able to drive a car when you are fifteen.
3. Paul couldn't write two years ago. Paul wasn't able to write two years ago.
4. I can't know everything. I am not able to know everything.
5. Nick couldn't buy ice cream because he had no money. Nick wasn't able to buy ice cream because he had no money.
6. Sara can't come to your birthday party. Sara isn't able to come to your birthday party.

Ответ: (см. решение выше)