11. My brother (not to play) tennis yesterday. He (to play) tennis the day before yesterday.
В первом предложении нужно использовать Past Simple в отрицательной форме: My brother did not play tennis yesterday. Во втором предложении нужно использовать Past Simple в утвердительной форме: He played tennis the day before yesterday.
Перевод: Мой брат не играл в теннис вчера. Он играл в теннис позавчера.
Ответ: My brother did not play tennis yesterday. He played tennis the day before yesterday.