Сделай утвердительные предложения отрицательными. Используй краткие формы.

Решение:

Нужно преобразовать утвердительные предложения в отрицательные, используя краткие формы глагола 'to be'.

1. I am English. → I'm not English.
2. You are 15. → You aren't 15.
3. They are French. → They aren't French.
4. He is happy. → He isn't happy.
5. It is blue. → It isn't blue.

Ответ: 1. I'm not English. 2. You aren't 15. 3. They aren't French. 4. He isn't happy. 5. It isn't blue.