Beginner
Упражнение на формирование утвердительных предложений с could
Упражнение на сравнение употребления can и could в вопросах
Упражнение на формирование отрицательных предложений с can и could
Упражнение на can, can’t и could, couldn’t
Упражнение на was, were, had и could
Упражнение на was, were, had и could
Упражнение на be, have в Present и Past Simple, а также can и could
Elementary