B. Make the sentences negative. 11. I finished my homework. 12. We visited our grandparents last weekend. 13. The teacher explained the exercise. 14. My brother fixed his bike. 15. She opened the window. 16. The students studied for the exam. 17. You answered all the questions. 18. The shop increased its prices. 19. My friends moved to the country. 20. The dog followed its owner.

Перевод задания: Сделайте предложения отрицательными.

Правило: для отрицания в Past Simple используется did not (didn’t) + начальная форма глагола.

11. I did not finish my homework. (Я не закончил(а) домашнее задание.)
12. We did not visit our grandparents last weekend. (Мы не навещали бабушку и дедушку в прошлые выходные.)
13. The teacher did not explain the exercise. (Учитель не объяснил упражнение.)
14. My brother did not fix his bike. (Мой брат не починил велосипед.)
15. She did not open the window. (Она не открыла окно.)
16. The students did not study for the exam. (Студенты не готовились к экзамену.)
17. You did not answer all the questions. (Ты не ответил(а) на все вопросы.)
18. The shop did not increase its prices. (Магазин не повысил цены.)
19. My friends did not move to the country. (Мои друзья не переехали за город.)
20. The dog did not follow its owner. (Собака не пошла за своим хозяином.)